- 1940 to 194416
- 1945 to 194915
- 1950 to 195422
- 1955 to 195938
- 1960 to 196433
- 1965 to 196925
- 1970 to 197417
- 1975 to 197915
- 1980 to 198417
- 1985 to 198917
- 1990 to 199418
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