- 1920 to 19211
- 1922 to 19241
- 1925 to 19261
- 1927 to 192976
- 1930 to 193166
- 1932 to 19341
- 1935 to 19360
- 1937 to 19390
- 1940 to 19410
- 1942 to 19447
- 1945 to 19464
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