- 1910 to 191411
- 1915 to 191925
- 1920 to 1924172
- 1925 to 1929281
- 1930 to 1934295
- 1935 to 1939280
- 1940 to 1944528
- 1945 to 1949441
- 1950 to 1954279
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