- 1918 to 19192
- 1920 to 19210
- 1922 to 19230
- 1924 to 19250
- 1926 to 19270
- 1928 to 19290
- 1930 to 19310
- 1932 to 19331
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