- 1947 to 194915
- 1950 to 195428
- 1955 to 195924
- 1960 to 196425
- 1965 to 196924
- 1970 to 19741
- 1975 to 19792
- 1980 to 198427
- 1985 to 198866
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