Subjects
- Carbon copies1
- Card files4
- Cartoons (working drawings)1
- Case files1
- Cassette tapes1
- Catalogs1
- Certificates7
- Charitable uses, trusts, and foundations1
- Charts (graphic documents)1
- Christmas cards1
- Citizens' associations -- New York (State)1
- Citizens' associations -- New York (State) -- New York1
- City planning -- New York (State) -- New York1
- City planning -- New York Metropolitan Area1
- Civic leaders2
- Civic leaders -- United States1
- Civil defense1
- Civil defense -- United States1
- Civil rights -- United States1
- Civilization1