- American Institute of Certified Public Accountants.1
- American Institute of Certified Public Accountants. Management Advisory Services Committee on Technical Studies.1
- American Jewish Committee.1
- American Labor Party.2
- American Library Association. 1940-1970 Notable Children's Book Committee.1
- American Management Association.2
- American National Standards Institute.1
- American Youth for Democracy.1
- American Zionist Council.1
- Americans United for Separation of Church and State.1
- Americans for Democratic Action.1
- Ameringer, Oscar, 1870-1943.2
- Ames, Merlin M. (Merlin McMain), 1879-1
- Amis, B. D., 1896-1
- Amnesty International.1
- Amter, I. (Israel), 1881-1954.2
- Amtorg Trading Corporation.1
- Anderson Galleries, Inc.1
- Anderson, Betty Baxter.1
- Anderson, C. W. (Clarence William), 1891-1971, author, illustrator.1