- 1930 to 1931961
- 1932 to 1933476
- 1934 to 193569
- 1936 to 193732
- 1938 to 193933
- 1940 to 19413
- 1942 to 19433
- 1944 to 19453
- 1946 to 19475
- 1948 to 19496
- 195040
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