- Illinois Supreme Court | Friday, September 29, 1967 | Cited 0 times
- Illinois Supreme Court | Tuesday, September 24, 1968 | Cited 0 times
- Supreme Court of the United States | Monday, March 27, 1967 | Cited 0 times
- Supreme Court of the United States | Monday, June 3, 1968 | Cited 0 times
- Supreme Court of the United States | Monday, June 2, 1969 | Cited 0 times