Collection
- Capital District Senior Issues Forum Records, 1997-20181
- Capital Region Planning Collection, 1949-20081
- Center for Law and Justice Records, 1985-20001
- Cheryl Ann Costa Papers, 1992-20201
- Citizen Action of New York Records, 1983-20081
- Citizens' Environmental Coalition Records, 1973-20051
- City of Newburgh Urban Renewal Collection, 1935-20001
- Civil Service Employees Association, Inc. (CSEA), American Federation of State, County, and Municipal Employees (AFSCME) Local 1000 Records, 1918-20151
- Communications Workers of America Education Division Local 1104 Records, 1969-2001 (bulk 1983-1999)1
- Communications Workers of America Operators Division Local 1104 Records, 1949-2001, bulk 1980-19951
- Conservative Party Of New York State Records, 1960-20191
- David Lee Powell Papers, 1978-20101
- Deacon Ernest L. Williams Papers, 1950-20101
- Death Row Support Project Records, 1988-20231
- Donald B. Rosenthal Papers, 1982-20041
- Donald M. Blinken Papers, 1969-20031
- Donald Schein Papers, 1954-20051
- Edward J. Bloch Papers, 1931-20011
- Eleanor Stein Papers, 1962-20201
- Eliot H. Lumbard Papers, 1943-20061