| Military | United States Navy | | ??/??/1942 to ??/??/1946 |
| U.S. Representative | 3rd Congressional District, Minnesota | Elected | 01/06/1947 to 01/03/1949 |
| U.S. Attorney | District of Minnesota | | ??/??/1953 to ??/??/1958 |
| U.S. Attorney | United States Department of Justice (Special Assistant) | | ??/??/1960 to ??/??/1961 |
| Judge | United States Court of Appeals, District of Columbia Circuit | | ??/??/1969 to ??/??/1995 |
| Judge | United States Foreign Intelligence Surveillance Court of Review | | ??/??/1979 to ??/??/1982 |
| U.S. Executive Branch | United States Sentencing Commission | Appointed | ??/??/1985 to ??/??/1991 |