| Year | Debater | Record | Result |
|---|---|---|---|
| 1978 | Kirsten Mickelson & Dan Stimpert | Unknown | Did Not Clear |
| 1972 | Unknown | Did Not Clear | |
| 1971 | George Kuehner, Jack Forsberg, Nick Nierengarten, Patrick Schwab, Steven Baloga (Alt) & John Livers (Alt) | Unknown | Did Not Clear |
| 1970 | 4-6 | 19th Place | |
| 1969 | 7-3 | 7th Place | |
| 1968 | 2-8 | 22nd Place | |
| 1967 | 4-6 | 19th Place | |
| 1966 | 3-7 | 22nd Place | |
| 1965 | 5-5 | 12nd Place | |
| 1964 | 4-6 | 20th Place | |
| 1962 | 2-8 | 22nd Place | |
| 1961 | 5-5 | 12nd Place | |
| 1959 | 1-5 | 16th Place | |
| 1958 | 0-6 | 18th Place | |
| 1957 | 2-4 | 13rd Place | |
| 1956 | 3-3 | 8th Place | |
| 1955 | 4-2 | 7th Place | |
| 1954 | Leslie Dirks, Chas. Hauenstein, Robert Dempsey & William Fritsche | 5-1 | 2nd Place |
| 1953 | 2-4 | 11st Place | |
| 1952 | 1-5 | 13rd Place | |
| 1951 | 3-3 | 6th Place | |
| 1950 | Diane Anglemeyer, David Berg, JoAnn Herrick & Lois Neuwirth | 2-4 | 6th Place |
| 1949 | Diane Anglemeyer, David Berg, Richard Wagner & Mary Wilson | 2-4 | 7th Place |
| 1948 | William Dempsey & Virgil Herrick | 2-2 | Unknown |
| 1947 | William Demfrey & Vergil Herrick | 2-2 | Unknown |
| 1946 | William Dempsey & Thelma Muesing | 1-2 | 5th Place |
| 1945 | N/A | Quarterfinalist | |
| 1944 | N/A | Quarterfinalist | |
| 1943 | N/A | Semifinalist | |
| 1942 | N/A | Semifinalist | |
| 1941 | N/A | Quarterfinalist | |
| 1940 | N/A | Quarterfinalist | |
| 1939 | N/A | Quarterfinalist | |
| 1938 | N/A | Quarterfinalist | |
| 1924 | N/A | Unknown | |
| 1923 | N/A | Champion |