In Re Adoption of Zimmerman , 229 N.W.2d 245 ( 1975 )
In Re Adoption of Vogt , 219 N.W.2d 529 ( 1974 )
Catholic Charities of Archdiocese of Dubuque v. Zalesky , 232 N.W.2d 539 ( 1975 )
Matter of Adoption of Gustafson , 240 N.W.2d 674 ( 1976 )