- 1946 to 19495
- 1950 to 19549
- 1955 to 19599
- 1960 to 19649
- 1965 to 196914
- 1970 to 197410
- 1975 to 19792
- 1980 to 19841
- 1985 to 198829
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