- 1940 to 1944249
- 1945 to 1949172
- 1950 to 1954206
- 1955 to 1959335
- 1960 to 1964326
- 1965 to 1969476
- 1970 to 1974752
- 1975 to 1979759
- 1980 to 1984773
- 1985 to 1989772
- 1990 to 1994766
- 1995 to 1999759
- 2000 to 200479
- 2005 to 20096
- 2010 to 20133
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