- 1950 to 19511
- 1952 to 19531
- 1954 to 19553
- 1956 to 19575
- 1958 to 19597
- 1960 to 196112
- 1962 to 196310
- 1964 to 196511
- 1966 to 196711
- 19683
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