- Supreme Court of the United States | Wednesday, April 21, 1971 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Tuesday, July 13, 1971 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Wednesday, July 21, 1971 | Cited 0 times
- Supreme Court of the United States | Monday, June 15, 1970 | Cited 0 times