- 1940 to 194442
- 1945 to 194945
- 1950 to 195430
- 1955 to 195936
- 1960 to 196430
- 1965 to 196932
- 1970 to 197430
- 1975 to 197930
- 1980 to 198432
- 1985 to 198932
- 1990 to 199435
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