Ratings for 1930-31 to 1933-34, from Nostalgia Digest, February-March 1985
Ratings for 1934-35 to 1937-38, from Nostalgia Digest, April-May 1985
Ratings for 1938-39 to 1940-41, from Nostalgia Digest, June-July 1985
Ratings for 1941-42 to 1944-45, from Nostalgia Digest, August-September 1985
Ratings for 1945-46 to 1951-52, from Nostalgia Digest, October-November 1985