- YMCA of the USA (2001)
- YMCA of the USA. International Division. (1671)
- Butler Street YMCA (Atlanta, Ga.) (224)
- National Board of the Young Men's Christian Associations. Committee on Extension (179)
- Lansdale, Herbert Parker, Jr., 1898-1988 (147)
- National Board of the Young Men's Christian Associations (147)
- Marsh, Leo B. (139)
- National Council of the Young Men's Christian Associations of the United States of America. Colored Work Department. (124)
- National Board of the Young Men's Christian Associations. Armed Services Dept. (120)
- Mott, John R. (John Raleigh), 1865-1955 (119)
- Harlem Branch YMCA (106)
- Brockman family (103)
- Tobias, Channing H., 1882-1961 (68)
- Dickson, Emma Young, 1891-1984 (66)
- Keller, Tiberius Zwi (60)
- National Board of the Young Men's Christian Associations. Industrial Work Dept. (56)
- YMCA of Greater New York (35)
- YMCA of Greater New York. (33)
- Alexander, Jesse N. (30)
- Lyon, D. Willard (28)
