- District Court, District of Columbia | Thursday, May 29, 1969 | Cited 0 times
- Supreme Court of Iowa | Wednesday, February 16, 1983 | Cited 0 times
- Court of Appeals for the D.C. Circuit | Tuesday, January 17, 1984 | Cited 0 times
- Supreme Court of Iowa | Wednesday, April 20, 1994 | Cited 0 times
- Supreme Court of the United States | Monday, June 2, 1975 | Cited 0 times
- Supreme Court of the United States | Wednesday, March 20, 1985 | Cited 0 times