- 1930 to 1931957
- 1932 to 1933473
- 1934 to 193564
- 1936 to 193729
- 1938 to 193930
- 1940 to 19412
- 1942 to 19432
- 1944 to 19451
- 1946 to 19473
- 1948 to 19494
- 195021
The preservation of the Duke University Libraries Digital Collections and the Duke Digital Repository programs are supported in part by the Lowell and Eileen Aptman Digital Preservation Fund