| Admitted | 1951, Illinois; 1954, U.S. District Court, Northern District of Illinois and U.S. Court of Appeals, 7th Circuit; 1968, U.S. Court of Appeals, 6th Circuit; 1971, U.S. Court of Appeals, 10th Circuit; 1980, U.S. Court of Appeals, 3rd Circuit; 1983, U.S. District Court, Eastern District of Michigan; 1986, U.S. Court of Appeals, 8th Circuit; 1988, U.S. District Court, Eastern District of Wisconsin; 1992, U.S. Court of Appeals, 5th Circuit |