- 1927 to 192912
- 1930 to 19310
- 1932 to 19340
- 1935 to 19360
- 1937 to 19391
- 1940 to 19410
- 1942 to 19442
- 1945 to 19460
- 1947 to 19490
- 19501
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