Schoenfeld, Sheryl S v. Apfel, Kenneth S. , 237 F.3d 788 ( 2001 )


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  • In the
    United States Court of Appeals
    For the Seventh Circuit
    No. 00-2261
    Sheryl Smith Schoenfeld, for herself and
    on behalf of Charles Mandeville, Kathleen
    Mandeville, and Jocelyn Mandeville,
    Plaintiff-Appellant,
    v.
    Kenneth S. Apfel, Commissioner of Social Security,
    Defendant-Appellee.
    Appeal from the United States District Court
    for the Western District of Wisconsin.
    No. 99 C 368--Barbara B. Crabb, Judge.
    Argued December 4, 2000--Decided January 11, 2001
    Before Flaum, Chief Judge, and Diane P. Wood and
    Williams, Circuit Judges.
    Flaum, Chief Judge. After her husband passed
    away, Sheryl Schoenfeld sought child’s benefits
    on behalf of her three children, in addition to
    mother’s benefits and a lump sum death benefit
    for herself. After an administrative hearing
    determined that the children were entitled to
    child’s benefits on the wage earner’s record, and
    that she was entitled to mother’s benefits, the
    Appeals Council reversed, holding that the
    evidence did not support a finding that the wage
    earner fathered the children. The Appeals Council
    decision, which is considered the final decision
    of the Commissioner of Social Security, was
    appealed to the District Court for the Western
    District of Wisconsin, which granted summary
    judgment in favor of the Commissioner.
    Thereafter, Schoenfeld appealed the district
    court’s decision to this Court, arguing that the
    Appeals Council’s findings are not supported by
    substantial evidence, and that the Council made
    errors of law. For the reasons stated herein, we
    affirm the district court’s grant of summary
    judgment.
    I.   BACKGROUND
    The wage earner, Clarence Schoenfeld ("Clay"),
    born on December 12, 1918, was a college
    professor at the University of Wisconsin. In July
    of 1969, Clay wed Sheryl Smith ("Sheryl"), a
    graduate student at the University. Though Clay
    had three children from a previous marriage, at
    the time of their nuptials, Clay informed Sheryl
    that he did not wish to have any additional
    children; a request that Sheryl initially
    acquiesced to. At some point though, Sheryl began
    to waver. In 1978, Sheryl moved out of Clay’s
    residence, and inquired into the possibilities of
    artificial insemination and adoption. However,
    she was rejected for both.
    In 1979, while vacationing in Rome, Sheryl
    became acquainted with a self-declared CIA
    operative and native Australian, Michael
    Mandeville. During a dinner conversation,
    Mandeville conveyed to Sheryl that he was
    interested in having children, but believed that
    because he was a covert agent for the CIA
    operating in Rome, he was in no position to be a
    parent in a "traditional" way. Eventually, the
    two arrived at a symbiotic arrangement whereby
    Mandeville agreed to supply his sperm to Sheryl
    for insemination purposes, and Sheryl agreed to
    give any resulting offspring the Mandeville
    surname.
    Shortly thereafter, Sheryl inseminated herself,
    using a syringe filled with Mandeville’s sperm.
    According to Sheryl, Clay knew of and consented
    to this attempt at pregnancy. Sheryl became
    pregnant and on October 10, 1980, gave birth to
    Charles Mandeville. Though Michael Mandeville and
    Sheryl were never married, the birth certificate
    lists Mandeville as Sheryl’s husband. During the
    time period in which Charles was conceived, Clay
    and Sheryl continued their conjugal relationship,
    relying on the birth control techniques of
    "rhythm" and "withdrawal."
    On November 24, 1980, a little over a month
    after the birth of Charles, Sheryl and Clay
    entered into a legal separation. The Judgment of
    Legal Separation decreed that "the child, Charles
    Smith (sic), born August 10, 1980, to petitioner
    Sheryl Stateler Smith, is not the child of the
    marriage and the joint petitioner, Clarence A.
    Schoenfeld, is not the father." Subsequent to the
    separation decree, Sheryl and Clay continued to
    have sexual relations, as well as to hold
    themselves out publically as husband and wife.
    Furthermore, Clay continued to provide financial
    support to Sheryl, including, but not limited to,
    making mortgage payments for Sheryl.
    In early 1982, Sheryl once more inseminated
    herself with Mandeville’s sperm, and on December
    16, 1982, Kathleen Mandeville was born. Again,
    Michael Mandeville was listed as the husband, and
    Clay and Sheryl had relations during the
    conceptive period. In 1983, as a result of his
    age and poor health, Clay moved into and
    thereafter resided at a retirement community.
    Nonetheless, Clay continued to spend time with
    Sheryl at their residence, and the couple never
    filed for divorce. Also in 1983, Clay applied for
    retirement benefits, stating on his application
    that he had no natural children, adopted children
    or stepchildren who were at that time under the
    age of 18. On May 17, 1985, a third child named
    Jocelyn Mandeville was born after employment of
    the same purported "homemade artificial
    insemination technique." Once again, Michael
    Mandeville was listed as Sheryl’s husband on the
    birth certificate, and Clay had sexual relations
    with Sheryl during the conceptive period. Testing
    (DNA or blood) to determine the paternity of the
    children has never been conducted.
    To this date, it does not appear that
    Mandeville ever provided financial or emotional
    support to Charles, Kathleen or Jocelyn. However,
    the record indicates that all three children were
    covered under Clay’s insurance policy, and were
    supported emotionally by Clay. In October 1990,
    though he still resided at a retirement
    community, Sheryl and Clay renewed their wedding
    vows in the presence of family and friends. Five
    years later, on February 24, 1996, Clay passed
    away.
    In April of 1996, Sheryl filed applications for
    child’s benefits on behalf of Charles, Kathleen,
    and Jocelyn Mandeville based on Clay’s earning
    record. Additionally, Sheryl filed for mother’s
    benefits and lump sum death benefits for herself.
    Her applications were denied initially and again
    upon reconsideration. At Sheryl’s request, an
    administrative hearing was held on May 21, 1998.
    The Administrative Law Judge’s ("ALJ") decision,
    dated September 23, 1998, found (1) the three
    children to be entitled to child’s benefits; (2)
    Sheryl to be entitled to mother’s benefits; and
    (3) Sheryl not to be entitled to the lump sum
    death benefits, as she was not living with the
    wage earner at the time of his death. The ALJ’s
    decision was based on his finding that there was
    no clear and convincing evidence to rebut the
    presumption under Wisconsin law that a child born
    to a married mother is presumed to be a marital
    child.
    On April 6, 1999, the Appeals Council reopened
    the matter, and proposed to revise the ALJ
    decision. Though Sheryl objected, on April 28,
    1999, the Appeals Council issued a decision
    reversing the ALJ: finding that Sheryl was not
    entitled to the lump sum death benefits, and that
    the children and Sheryl were not entitled to
    child’s and mother’s benefits on the wage
    earner’s record. Specifically, the Appeals
    Council found that a clear and satisfactory
    preponderance of the evidence upset the
    presumption that Clay was the natural father of
    Charles Mandeville, and that because of Clay and
    Sheryl’s separation, no presumption applied to
    Kathleen and Jocelyn. The Council further noted
    that Clay referred to himself and was considered
    by the children to be their stepfather instead of
    their natural father. In addition to finding that
    Charles, Kathleen, and Jocelyn were not the
    natural children of the wage earner, the Appeals
    Council expressly found the children not to be
    Clay’s stepchildren either. That finding was
    based on the Council’s interpretation of 20
    C.F.R. sec. 404.357 to mean that a child is a
    wage earner’s stepchild only if the wage earner
    married the child’s mother at a time when the
    relationship of parent and child already existed
    between the mother and child.
    On June 3, 1999, Sheryl appealed the Appeals
    Council decision to the United States District
    Court for the Western District of Wisconsin./1
    On February 9, 2000, the district court entered
    summary judgment affirming the final decision of
    the Commissioner. Sheryl now appeals to this
    Court, arguing, in large part, that the
    Commissioner’s evidentiary findings are not
    supported by substantial evidence, and that the
    Commissioner’s decision incorrectly applied
    Wisconsin law.
    II. DISCUSSION
    A. Standard of Review
    We review a district court’s grant of summary
    judgment de novo. Green v. Shalala, 
    51 F.3d 96
    ,
    99 (7th Cir. 1995). With regard to final
    decisions of the Commissioner of Social
    Security,/2 our de novo review dictates that we
    apply the district court’s standard of review,
    and uphold the Commissioner’s decision if the
    findings of fact are supported by substantial
    evidence and no error of law occurred. See Cannon
    v. Apfel, 
    213 F.3d 970
    , 974 (7th Cir. 2000); see
    also 42 U.S.C. sec. 405(g) ("The findings of the
    Commissioner of Social Security as to any fact,
    if supported by substantial evidence, shall be
    conclusive."). In determining whether substantial
    evidence exists, we review the record as a whole.
    However, we do not substitute our judgment for
    that of the Commissioner "by reconsidering facts,
    reweighing evidence, resolving conflicts in
    evidence, or deciding questions of credibility."
    Williams v. Apfel, 
    179 F.3d 1066
    , 1071-72 (7th
    Cir. 1999); see Richardson v. Perales, 
    402 U.S. 389
    , 399-401 (1971). In order for this Court to
    uphold a decision of the Commissioner, the
    standard requires that there be more than a
    scintilla of proof in support of that decision.
    Cannon, 
    213 F.3d at 974
    . But, "substantial
    evidence requires no more than such relevant
    evidence as a reasonable mind might accept as
    adequate to support a conclusion." Diaz v.
    Chater, 
    55 F.3d 300
    , 305 (7th Cir. 1995)
    (internal quotation omitted).
    Pursuant to the Social Security Act, every
    child of a worker who dies fully (or currently)
    insured is entitled to child’s insurance
    benefits, assuming all other prerequisites are
    met. 42 U.S.C. sec. 402(d)(1). The definition of
    a child, according to the Act, includes not only
    a worker’s natural child, but also any legally
    adopted child, and in certain circumstances a
    stepchild, grandchild, stepgrandchild, and
    equitably-adopted child. 
    Id.
     at sec. 416(e). In
    determining whether an applicant for benefits
    should be considered the child of an insured
    individual, the Commissioner of Social Security
    applies the law governing intestate transfers in
    the state where the decedent was domiciled at the
    time of his or her death. 
    Id.
     at sec.
    416(h)(2)(A). Therefore, we direct our inquiry to
    an examination of Wisconsin intestacy law, and
    whether according to those laws the Mandeville
    children would be able to inherit the property of
    the decedent.
    According to the basic rules for intestate
    succession in Wisconsin, the decedent’s estate
    may pass to the decedent’s issue. Wis. Stat sec.
    852.01. In keeping with the definition contained
    in sec. 990.01(17), an "issue" includes all the
    lawful descendants of the ancestor. Within the
    penumbra of lawful descendants lies the category
    of marital child, which Wisconsin law defines to
    include any "child who is conceived or born while
    his or her parents are lawfully intermarried," as
    well as any "nonmarital child who is adopted or
    whose parents subsequently intermarry under sec.
    767.60." Wis. Stat. sec. 990.01(19m). For
    completion purposes, the law defines a nonmarital
    child as "a child who is neither conceived nor
    born while his or her parents are lawfully
    intermarried, who is not adopted and whose
    parents do not subsequently intermarry under sec.
    767.60." 
    Id.
     at sec. 990.01(23m).
    While the law allows for the decedent’s estate
    to pass to marital children, in certain
    circumstances, it also provides that a nonmarital
    child is entitled to take in the same manner as
    a marital child by intestate succession. Wis.
    Stat. sec. 852.05. Specifically, if a nonmarital
    child’s father has (1) been adjudicated to be the
    father in a paternity proceeding under sec. 767
    or by final judgment of a court of competent
    jurisdiction in another state; or (2) admitted in
    open court that he is the father; or (3)
    acknowledged himself to be the father in a
    writing signed by him, the child takes as a
    marital child. 
    Id.
     Therefore, in order to obtain
    child’s benefits in Wisconsin, the child must be
    shown to be either a marital child or fall within
    one of the above categories of nonmarital
    children. With this background, we now proceed to
    analyze the merits of this appeal.
    B.   Constitutional Claims
    As a preliminary matter, we note that much of
    appellant’s/3 brief is devoted to raising equal
    protection and due process arguments under the
    Fifth Amendment of the Constitution of the United
    States. In appellant’s reply brief, as well as
    during oral argument, appellant conceded that
    these arguments were not raised below. We have
    long held that "[i]ssues that a claimant fails to
    raise before the district court are waived on
    appeal." Ehrhart v. Secretary of Health and Human
    Serv., 
    969 F.2d 534
    , 537 n.4 (7th Cir. 1992); see
    also United States v. Andreas, 
    150 F.3d 766
    , 769
    (7th Cir. 1998) ("We have held time and again
    that perfunctory and undeveloped arguments (even
    constitutional ones) are waived."). Furthermore,
    the fact that appellant obtained different
    counsel for the purposes of filing her appeal
    does not allow her to raise these arguments
    before this Court. See Ehrhart, 
    969 F.2d at
    537
    n.6. At oral argument, appellant all but
    abandoned her constitutional challenges and
    requested that we examine the claims only as they
    relate to the proper application of Wisconsin law
    by the Appeals Council. Because we view
    appellant’s constitutional challenges as having
    been waived, we proceed to analyze the factual
    findings and legal underpinnings behind those
    claims, and examine whether the district court
    was correct in granting the Commissioner summary
    judgment.
    C.   Commissioner’s Evidentiary Findings
    The district court granted the Commissioner
    summary judgment, after accepting the magistrate
    judge’s recommendations that there was
    substantial evidence to support the
    Commissioner’s factual findings (and that no
    error of law was made). Once again, substantial
    evidence is evidence which a reasonable mind
    would accept as adequate to support a conclusion,
    such that where conflicting evidence allows
    reasonable minds to differ as to whether a
    claimant is entitled to benefits, the
    responsibility for that decision rests with the
    Commissioner. See Binion ex rel. Binion v.
    Chater, 
    108 F.3d 780
    , 782 (7th Cir. 1997).
    Appellant’s specific contention before this Court
    is that there was not substantial evidence to
    support the Commissioner’s findings that the
    Mandeville children were not the natural children
    of the wage earner./4
    Once more, we must return to Wisconsin law to
    determine whether the Mandeville children should
    be considered the natural children of Clay.
    Wisconsin statutes provide that "[w]henever it is
    established in an action or proceeding that a
    child was born to a woman while she was the
    lawful wife of a specified man, any party
    asserting in such an action or proceeding that
    the husband was not the father of the child shall
    have the burden of proving that assertion by a
    clear and satisfactory preponderance of the
    evidence." Wis. Stat. sec. 891.39(1)(a). A clear
    and satisfactory preponderance of the evidence is
    a higher degree of proof than is required in most
    civil actions but not as great as the burden of
    proof reserved for criminal actions. See Wis.
    Stat. sec. 891.39 legislative council notes. Yet,
    as we shall discuss, the presumption of paternity
    contained in sec. 891.39(1)(a) is inapplicable if
    the parents are legally separated; as happened in
    this instance in between the births of Charles
    and Kathleen. Thus, in examining the Mandeville
    children’s status vis e vis Clay, we sunder our
    examination, first addressing Charles’ status and
    then that of Kathleen and Jocelyn.
    1.   Charles Mandeville
    Because Charles was conceived and born while
    Clay and Sheryl were married, the presumption
    contained in sec. 891.39(1)(a) is applicable.
    Here, appellant argues that there was
    insufficient evidence to overcome the presumption
    that Charles is the natural child of Clay. In
    concluding that the record contained sufficient
    evidence to rebut the presumption, the Appeals
    Council cited the following: (1) Sheryl’s
    acknowledgment that Charles was conceived by
    artificial insemination using Mandeville’s sperm;
    (2) the statement in the Judgment of Legal
    Separation that Charles was not Clay’s child; (3)
    Clay’s statement under penalty of perjury at the
    time he applied for benefits that he had no minor
    children; (4) the fact that Clay referred to
    himself and was considered by the children to be
    a stepfather rather than a natural father; and
    (5) that Sheryl and Clay actively attempted to
    avoid impregnation during intercourse.
    In arguing that there was insufficient evidence
    to rebut the paternity presumption, appellant
    states that "it is unclear what weight should be
    given to the evidence cited by the Appeals
    Council and affirmed by the District Court
    because it was assumed that Sheryl acted on
    behalf of Charles Mandeville in the proceedings
    below." It is incontrovertible that Sheryl’s
    testimony is admissible for purposes of
    determining paternity. As the statute plainly
    states, "In all such actions or proceedings the
    husband and the wife are competent to testify as
    witnesses to the facts." Wis. Stat. sec.
    891.39(1)(a). Thus, we must question to what end
    appellant is challenging the statements made by
    Sheryl. To the extent that appellant claims the
    Appeals Council erred in not appointing a
    guardian ad litem to represent Charles’
    interests, we address that contention below,
    along with appellant’s other legal challenges.
    However, inasmuch as appellant questions how much
    weight should have been granted to the testimony
    of Sheryl by the Appeals Council, that inquiry is
    out of bounds. As we stated above, when it comes
    to reviewing the final decision of the
    Commissioner, we do not reconsider facts, reweigh
    evidence, resolve conflicts in evidence, or
    decide questions of credibility. See Williams,
    
    179 F.3d 1071
    -72. Thus, whether or not Sheryl had
    motivations to fabricate the circumstances
    surrounding her pregnancy does not factor into
    our analysis here. Similarly, appellant attacks
    reliance on the statement contained in the
    Judgment of Legal Separation, in that Charles was
    not represented in the proceedings. In support of
    that attack, appellant points out that "[i]t is
    well established that an infant is not bound by
    a judgment unless he is represented by a guardian
    ad litem at the time of its entry." In re Will of
    Brandstedter, 
    224 N.W. 735
    , 736 (1929). Once
    again, appellant attempts to invoke this legal
    argument as a justification for us to cross over
    into the reweighing of evidence relied on by the
    Appeals Council; an endeavor we will not
    undertake.
    In suggesting that there was insufficient
    evidence to overcome the presumption that Charles
    is the marital child of Clay, appellant presents
    "medical evidence" in order to question the
    veracity of Sheryl’s version of the insemination.
    Additionally, appellant argues that the
    presumption of Clay as the natural father cannot
    be overcome in this instance, given that no DNA
    or blood tests have been administered on the
    children to resolve the matter./5 While Wis.
    Stat. sec. 891.39 does recognize that a genetic
    test constitutes clear and satisfactory
    preponderance of the evidence, capable of
    rebutting the paternity presumption of the
    statute, there is no suggestion that lack of a
    DNA test precludes rebuttal of the presumption.
    A clear and satisfactory preponderance of the
    evidence can be found with less than the
    certitude that genetic testing brings. For
    example, in Schmidt v. Schmidt, the Supreme Court
    of Wisconsin reversed a lower court decision that
    found insufficient evidence to rebut the
    presumption that Mr. Schmidt was the biological
    father of the child in question. 
    124 N.W.2d 569
    (1963). In that case, the presumption was created
    (as here) by the fact that the couple was married
    at the time the child was conceived and born.
    Additionally, both the birth certificate and
    baptismal certificate listed Mr. Schmidt as the
    child’s father, Mr. Schmidt supported the child,
    and never disavowed paternity prior to his
    divorce proceedings. Id. at 571. Yet, the court
    found that the testimony of the couple that their
    last date of intercourse precluded Mr. Schmidt
    from being the natural father of the child at
    issue, in conjunction with Mrs. Schmidt’s
    admission of extramarital relations during the
    conceptive period constituted a clear and
    sufficient preponderance of the evidence and was
    thus sufficient to overcome the presumption that
    Mr. Schmidt was the father. See id. at 571-74.
    Here, the argument in favor of rebutting the
    presumption is stronger, as not only do we have
    both parents testifying that Clay is not the
    father, but we have the additional fact that Clay
    was never held out to be, or documented as the
    natural father of Charles. Yet, we need not rely
    on Sheryl’s and Clay’s assertions regarding the
    success of the artificial insemination procedure.
    The fact is that in 25 years of active sexual
    relations with Clay the only times that Sheryl
    became pregnant were following artificial
    insemination attempts. This evidence, which the
    Commissioner was entitled to consider, in
    conjunction with Sheryl’s statements establishing
    the possibility that Mandeville’s sperm
    impregnated Sheryl, is sufficient to rebut the
    presumption that Clay is Charles’ natural father.
    Ultimately though, our task is not as difficult
    as it may seem. While appellant continuously
    argues the absence of a clear and satisfactory
    preponderance of the evidence to rebut the
    presumption that Clay is Charles’ natural father,
    our review is much more limited. As stated
    numerous times throughout this opinion, we sit,
    with regard to factual determinations of the
    Appeals Council, only to insure that those
    determinations are supported by substantial
    evidence. See Binion, 
    108 F.3d at 782
    . Here,
    given the statements (made under penalty of
    perjury) of both Sheryl and Clay, the birth
    certificate, the articulation contained in the
    decree of separation, and the day-to-day manner
    in which the children regarded Clay, we find that
    substantial evidence supports the Appeals
    Council’s decision that Charles was not the
    marital child of Clay.
    2.   Kathleen and Jocelyn Mandeville
    Whether there was substantial evidence to
    support the decision of the Appeals Council that
    Kathleen and Jocelyn are not the marital children
    of Clay is a more straightforward question, given
    the analysis above and the legal separation that
    occurred prior to their births. According to Wis.
    Stat. sec. 891.41, "a man is presumed to be the
    natural father of a child if . . . (a) He and the
    child’s natural mother are or have been married
    to each other and the child is conceived or born
    after marriage and before the granting of a
    decree of legal separation, annulment or divorce
    between the parties." Thus, if the child was
    conceived subsequent to a decree of legal
    separation, as was the case here, there is no
    presumption as to paternity. Aside from the
    decree of legal separation, and the statement
    contained therein, the factual circumstances
    surrounding Kathleen and Jocelyn’s births are
    indistinguishable from those regarding Charles.
    The appellant does not present any additional
    arguments in support of reversal of the Appeals
    Council’s determination, besides those previously
    discussed in relation to Charles’ paternity.
    Despite the presumption that Charles is Clay’s
    marital child, we determined that there was
    substantial evidence to support the Appeals
    Council’s decision to the contrary. A fortiori,
    in the cases of Kathleen and Jocelyn, where there
    is no presumption that Clay is the father, we
    find that there was substantial evidence to
    support the Appeals Council’s decision.
    D. Commissioner’s Application of Appropriate Legal
    Standards
    In addition to challenging the Commissioner’s
    factual findings, appellant also argues that the
    Commissioner erred in applying Wisconsin law. As
    we alluded to above, the Commissioner’s
    conclusions of state law are not entitled to
    deference. Therefore, "if the Commissioner
    commits an error of law, reversal is required
    without regard to the volume of evidence in
    support of the factual findings." Binion, 
    108 F.3d at 782
    .
    Appellant’s primary contention regarding legal
    error by the Appeals Council is that by not
    appointing a guardian ad litem to represent the
    interests of the children, the Commissioner
    incorrectly applied Wisconsin law. In support of
    this argument, appellant cites Wis. Stat. sec.
    891.39 which states that in all actions in which
    the presumption that the husband is not the
    father is being challenged, "[t]he court or judge
    in such cases shall appoint a guardian ad litem
    to appear for and represent the child whose
    paternity is questioned."
    Appellant’s argument is unconvincing for
    numerous reasons. First, we note that this
    argument was not raised at the district court
    level and as such we believe that it has been
    waived. See Andreas, 
    150 F.3d at 769
    . Appellant
    recognizes that the guardian ad litem issue was
    not directly presented below, but urges this
    Court to consider the claim as being encapsulated
    within the general challenge to the appropriate
    application of Wisconsin law. However, the legal
    challenges presented below did not center around
    the appointment of a guardian ad litem, but
    rather around whether it was proper for the
    Appeals Council to reopen, reexamine, and reverse
    the decision of the ALJ. Nonetheless, giving the
    appellant a degree of latitude and assuming
    arguendo that the claim has not been waived, we
    still fail to see error in this instance.
    The Social Security Act does not mandate that a
    guardian ad litem be appointed to protect a
    minor’s interest, and appellant has not provided
    any case law to suggest otherwise. Rather, the
    appellant claims that determining whether an
    applicant for benefits should be considered the
    child of an insured individual demands that the
    Commissioner here apply Wisconsin law governing
    intestate transfers. 42 U.S.C. sec. 416(h)(2)(A).
    Since Wisconsin law requires such an appointment,
    the fact that one did not occur in this instance
    requires reversal of the Commissioner’s
    decision./6
    We disagree that Wisconsin law requires such an
    appointment. As the appellant notes, the
    requirement of appointing a guardian ad litem
    applies in limited circumstances, such as when
    custody is at issue--as is contemplated under
    Wis. Stat. sec. 891.39. See e.g., Bahr v. Bahr,
    
    240 N.W.2d 162
    , 164 (1976) (holding that it is
    reversible error for the trial court to fail sua
    sponte to appoint a guardian ad litem before
    deciding contested custody issues, even if
    neither party has requested the appointment of a
    guardian ad litem). Appellant recognizes that the
    Commissioner’s adjudication here does not fall
    within that limited category, and therefore
    points out that "beyond custody cases, courts
    have discretion to determine whether concern is
    ’special’ so as to require appointment of a
    guardian ad litem." See deMontigny v. deMontigny,
    
    233 N.W.2d 463
     (1975)./7 Thus, the appellant
    attempts to pigeonhole this case within the
    limited categories of Wis. Stat. sec.
    767.045(1)(a)(1) (where the court has reason for
    special concern for the welfare of the child),
    and Wis. Stat. sec. 803.01(3) (where the
    interests of the minor are adverse to that of the
    general guardian).
    In support of the notion that Sheryl’s
    interests conflicted with that of the children,
    appellant suggests that Sheryl had motivation to
    maintain that the children were the product of
    artificial insemination, in order to keep Clay
    from divorcing her./8 Taken at face value, this
    assertion would only be relevant to the statement
    contained within the separation decree that
    Charles was not the son of Clay. Since a guardian
    was not appointed for those separation
    proceedings, it is clear that the statement
    contained in the decree is not a binding
    declaration of Charles’ paternity. "It is well
    established that an infant is not bound by a
    judgment unless he is represented by a guardian
    ad litem at the time of its entry." In re Will of
    Brandstedter, 224 N.W. at 736. Thus, Charles
    would be free to litigate the issue of paternity,
    as provided by Wisconsin law. However, that
    failure to appoint a guardian, in an unrelated
    procedure over 20 years ago, does not require
    reversal of the Commissioner’s decision in this
    matter. That Sheryl may have had a motivation to
    prevaricate in 1980 goes to the credibility of
    the statement in the separation decree, and does
    not show that Sheryl’s interests conflicted with
    that of her children during the proceedings
    before the ALJ. The statement contained in the
    separation agreement is not being employed as a
    conclusively binding declaration of paternity,
    but rather as one of a number of reasons for
    rebutting the presumption that Clay is Charles’
    natural father. While there was a possible
    conflict of interest during the separation
    proceedings, that conflict (and the failure to
    appoint a guardian ad litem) in that instance
    works only to cast doubt on the credibility of
    the statement contained in the agreement. But, as
    we have stated numerous times in this opinion, we
    will not review the Commissioner’s credibility
    determinations. Williams, 
    179 F.3d 1071
    -72.
    In the proceedings before the ALJ, Sheryl had
    no motivation--other than to tell the truth--to
    suggest that Mandeville was the children’s
    biological father. At that point, Clay was
    deceased and the stability of their marriage
    moot. As the Commissioner correctly points out,
    at that time, Sheryl’s interests were squarely in
    line with those of her children. The only way by
    which Sheryl could obtain mother’s benefits would
    be if the children were determined to be entitled
    to child’s benefits. In fact, since it was
    uncontested that Sheryl would be entitled to her
    mother’s benefits if the children were entitled
    to their benefits, in reality, the only interest
    Sheryl was representing at the hearing was that
    of the children. Therefore, even assuming that
    appellant’s guardian ad litem argument was raised
    below, we find no conflict that would have
    necessitated the appointment of a guardian ad
    litem./9
    Finally we note that throughout appellant’s
    brief, there is also a suggestion of legal error
    in that the Commissioner did not create a
    complete factual record. To the extent that
    appellant articulates this argument fully, it
    appears to be based on the failure of the
    Commissioner to conduct paternity tests. As we
    have noted above, while we believe that DNA or
    blood tests could resolve the paternity issue
    conclusively, it has been and continues to be
    within Sheryl Schoenfeld’s power, as guardian of
    those children, to have those tests carried out.
    While tests were not requested by the
    Commissioner, even appellant notes that it is
    questionable whether such requests would have to
    be honored. Appellant has failed to point to any
    specific evidence that the Commissioner excluded,
    or explain how appellant was prejudiced by the
    record that was created. "Mere conjecture or
    speculation that additional evidence might have
    been obtained in the case is insufficient to
    warrant a remand." Binion v. Shalala, 
    13 F.3d 243
    , 246 (7th Cir. 1994). Thus, we hold that the
    Commissioner developed a fair and complete
    record.
    III.   CONCLUSION
    We agree with the district court that the
    Commissioner’s findings are supported by
    substantial evidence and that the Commissioner
    correctly applied Wisconsin law.
    For the foregoing reasons, we Affirm the decision
    of the district court.
    /1 The decision of Appeals Council is considered the
    final decision by the Commissioner of Social
    Security and subject to judicial review pursuant
    to 42 U.S.C. sec. 405(g).
    /2 Because the Commissioner has delegated the
    authority to make final decision to the Appeals
    Council, reviewing courts must defer to the
    Appeals Council’s decision. White v. Sullivan,
    
    965 F.2d 133
    , 136 (7th Cir. 1992). Hence, when
    the ALJ’s decision is reversed by the Appeals
    Council, it is the Appeal’s Council decision
    which constitutes the Commissioner’s final
    decision for purposes of judicial review under 42
    U.S.C. sec. 405(g). See also 20 C.F.R. sec.sec.
    404.979, 404.981.
    /3 Throughout the course of this opinion, we use
    "Sheryl" and "appellant" when referring to Ms.
    Schoenfeld. These terms are not used
    interchangeably. The use of the term "appellant"
    is confined to referencing Sheryl Schoenfeld, as
    she appears in this suit, for herself and on
    behalf of her children. All uses of "Sheryl"
    denote Ms. Schoenfeld as the individual actor.
    /4 Before the Appeals Council and the district
    court, appellant alternatively argued that even
    if the Mandeville children were not considered
    Clay’s natural children, they should be
    considered his stepchildren. This argument was
    founded in the assumption that the renewal of
    wedding vows in 1990 between Sheryl and Clay
    Schoenfeld acted as a marriage (or would have
    been a marriage but for legal impediment),
    thereby making the children eligible for benefits
    under the law. See 42 U.S.C. sec. 416(h)(2)(B)
    ("You may be eligible for benefits as the
    insured’s stepchild if, after your birth, your
    natural or adopting parent married the
    insured."). This argument was rejected by the
    Appeals Council as well as the district court,
    and is not before us on appeal. Therefore, our
    inquiry is confined to examining whether the
    children should be considered the natural
    children of the wage earner.
    /5 We are troubled by the fact that appellant’s
    arguments as to why the Appeals Council decision
    should be overturned rest largely on the
    innuendo, contained in appellant’s brief, that
    appellant Sheryl Schoenfeld concocted the entire
    Mandeville saga. Additionally, we find it
    disingenuous for Sheryl to suggest that the lack
    of DNA tests to establish paternity somehow
    precludes rebuttal of the presumption that Clay
    is Charles’ natural father (as well as the
    natural father of Kathleen and Jocelyn). Given
    that as their guardian, it has always been and
    continues to be within Sheryl’s power to have
    those tests conducted, and to enlist the aid of
    the Wisconsin courts in determining the
    children’s paternity, we do not believe it is
    appropriate for Sheryl to benefit from the shadow
    of doubt that she has created. Were this a
    situation where Sheryl had not passively waited
    for the ALJ to gather the evidence and make her
    case for her, but instead had attempted, and been
    unsuccessful at having paternity tests conducted,
    perhaps the Commissioner would have viewed this
    case differently. However, we fail to understand
    how the appellant can claim that the "critical
    determination" of paternity, under Wisconsin law
    "must be made," while at the same time (1) never
    attempt to have that determination made; and (2)
    state "that whether ordering DNA or blood tests
    would have been allowable in the instant case is
    not at issue."
    /6 It is unclear whether the requirement of applying
    state intestacy law directs that we follow state
    rules regarding the appointment of a guardian ad
    litem, or are limited to more substantive aspects
    of the determination under state intestacy laws.
    In Bennemon ex rel. Williams v. Sullivan, we
    noted that the determination of intestate
    succession as applied in benefits cases requires
    the "following [of] a specific state-law
    procedure, as opposed to merely satisfying a
    substantive criterion of law." 
    914 F.2d 987
    , 992
    (7th Cir. 1990). For purposes of this appeal, we
    assume arguendo that guardian ad litem
    appointments in Social Security benefits cases
    are governed by state law.
    /7 While on the one hand appellant recognizes that
    outside of limited circumstances, appointment of
    a guardian ad litem is discretionary, appellant
    also broadly suggests that a guardian ad litem
    must be appointed on all issues even tangentially
    related to paternity.
    /8 This unsupported allegation appears for the first
    time in appellant’s reply brief.
    /9 We note in passing that appellant’s complaint
    regarding the failure to appoint a guardian ad
    litem is directed to the ALJ hearing. It was at
    that hearing, when the children were, according
    to the appellant, not adequately represented,
    that they received a favorable determination.