- Supreme Court of Iowa | Tuesday, March 5, 1968 | Cited 0 times
- Supreme Court of Iowa | Tuesday, July 11, 1967 | Cited 0 times
- Court of Appeals of North Carolina | Wednesday, December 15, 1971 | Cited 0 times
- Supreme Court of Minnesota | Friday, May 12, 1972 | Cited 0 times
- Supreme Court of Iowa | Wednesday, May 23, 1973 | Cited 0 times