- 1912 to 191453
- 1915 to 191951
- 1920 to 192443
- 1925 to 192994
- 1930 to 1934108
- 1935 to 1939114
- 1940 to 1944206
- 1945 to 1949158
- 1950 to 195442
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