| Year | Debater | Record | Result |
|---|---|---|---|
| 1983 | 3-1 | Octafinalist | |
| 1982 | 2-2 | Octafinalist | |
| 1975 | Unknown | Did Not Clear | |
| 1972 | Unknown | Did Not Clear | |
| 1971 | Debra Franz, Ben Vanderkooi, Dennis Olson & Greg Winter | Unknown | Did Not Clear |
| 1970 | 5-5 | 16th Place | |
| 1969 | 3-7 | 20th Place | |
| 1968 | 8-2 | 5th Place | |
| 1967 | 8-2 | 5th Place | |
| 1966 | 5-5 | 13rd Place | |
| 1965 | 3-7 | 20th Place | |
| 1964 | 4-6 | 16th Place | |
| 1961 | 5-5 | 13rd Place | |
| 1959 | 1-5 | 19th Place | |
| 1934 | Dick Ross, Arnold Canfield, James Shaffer & Pearl Moi | N/A | Champion |
| 1932 | Mary Larson, Altie Sterud & Lucille Townsend | N/A | Champion |