- 1915 to 19192
- 1920 to 19248
- 1925 to 19293
- 1930 to 19341
- 1935 to 19390
- 1940 to 194477
- 1945 to 1949126
- 1950 to 1954130
- 1955 to 195834
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