- 1915 to 19192
- 1920 to 19240
- 1925 to 192911
- 1930 to 193419
- 1935 to 19398
- 1940 to 19449
- 1945 to 19493
- 1950 to 19541
- 1955 to 19596
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