- 1940 to 194426
- 1945 to 194936
- 1950 to 195424
- 1955 to 195915
- 1960 to 196411
- 1965 to 196952
- 1970 to 197418
- 1975 to 19793
- 1980 to 198461
- 1985 to 198888
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