Collection
- John R. Dunne Papers, 1943-1970573
- Leonard Kastle Papers, 1940-1996567
- Bridge Line Historical Society Collection, 1870-2024560
- National Organization for Women (NOW), New York State Chapter Records, 1961-2011537
- Michelle Crone Papers, 1927-2000, bulk 1982-1995515
- Duncan Blanchard Papers, 1789-2003509
- Hans Staudinger Papers, 1928-1980504
- City of Newburgh Urban Renewal Collection, 1935-2000488
- General Reference Collection, 1828-2015454
- Eliot H. Lumbard Papers, 1943-2006447
- Oskar Maria Graf Papers, 1891-1967445
- Greta Hartwig Manschinger and Kurt Manschinger (Ashley Vernon) Papers, 1896-1986428
- Louis Ismay Papers, 1959-1977427
- Bernard Vonnegut Papers, 1828-1997413
- Civil Service Employees Association, Inc. (CSEA), American Federation of State, County, and Municipal Employees (AFSCME) Local 1000 Records, 1918-2015401
- William Kennedy Papers, 1926-2003382
- John M. Spalek Papers, 1933-2010359
- Erich von Kahler Papers, 1905-1977338
- Bertram L. Podell Papers, 1945-1970295
- Geof Huth Papers, 1960-2006290