1988, Burlington, Colorado
1983, Burlington, Vermont
1977, Burlington, Vermont
1973, Burlington, Vermont
1969, Burlington, Iowa
1959, Burlington, Vermont
1958, Burlington, Vermont
1949, Burlington, Iowa
1944, Burlington, Iowa
1941, Burlington, Iowa
1941, Burlington, Vermont
1939, Burlington, Iowa
1938, Burlington, Iowa
1937, Burlington, Iowa
1936, Burlington, Iowa
1932, Burlington, Massachusetts
1930, Burlington, Vermont
1929, Burlington, Iowa
