- Altman, Dorothy (Radio producer)1
- Altman, Laurie, 1947-1
- Alumni Federation of Columbia University1
- Alva, Margaret, 1942-1
- Alvarez Silva, Hector1
- Alvarez, Celia2
- Alves, Rubem A., 1933-20141
- Amacher, Maryanne1
- Amacker, Robert, 1944-1
- Amato, Bruno1
- Amaya, Mario2
- Ambassador's Maid (Musical group)1
- Ambrose, George1
- American Academy of Religion5
- American Academy of Religion. Conference (1976: St. Louis, Mo.)1
- American Association of University Women2
- American Brass Quintet1
- American Broadcasting Companies. ABC Radio1
- American Bureau for Medical Aid to China1
- American Composers Alliance1
- American Composers Orchestra1
- American Forces Network6
- American Friends Service Committee2
- American Institute of Architects5
- American Institute of Architects. Detroit Chapter1
- American Institute of Architects. Florida Association1
- American Israel Public Affairs Committee1
- American Jewish Committee2
- American Jewish Joint Distribution Committee1
- American Recording Society Orchestra40
- American Society of University Composers3
- Americans for Democratic Action2
- Ames, David1
- Ames, Genie1
- Amin, Samir1
- Amirian, Adrianne2
- Amitay, Morris J., 1936-1
- Amos House (Shelters : Providence, R.I.)1
- Amos, Stanley2
- Amram, David25
- An, Ik-t'ae, 1906-19653
- Ancier, Garth, 1957-1
- Anderer, Joseph1
- Andersen, Eric3
- Anderson, Abraham, 1954-3
- Anderson, Adolph2
- Anderson, Beth, 1950-1
- Anderson, Carolyn, 1913-19931
- Anderson, Clinton Presba, 1895-19751
- Anderson, Donald (Cellist)1
- Anderson, G. Early1
- Anderson, Harold S1
- Anderson, Helen1
- Anderson, James1
- Anderson, Jim2
- Anderson, Jim (Actor), active 1960s-1970s1
- Anderson, Jon, 1944-1
- Anderson, M. O1
- Anderson, Marian, 1897-19932
- Anderson, Marie, 1916-19961