- 1890 to 1899151
- 1900 to 1909157
- 1910 to 1919154
- 1920 to 1929160
- 1930 to 1939146
- 1940 to 1949146
- 1950 to 1959144
- 1960 to 1969145
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