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Medium
- black-and-white photographs89
- color photographs66
- videotapes36
- born digital7
- sound recordings6
- archival materials5
- audiotapes5
- instructional materials5
- articles4
- booklets4
- oral histories (literary works)4
- timelines (chronologies)4
- files (document groupings)3
- photographic prints3
- biographies2
- speeches2
- speeches (documents)2
- teaching guides2
- transcripts2
- audiocassettes1