- African-American Labor Center1
- Airports1
- Allen, Rex, 1920-19991
- Amalgamated Clothing and Textile Workers Union1
- Amalgamated Clothing and Textile Workers Union. Research Department1
- American Federation of Government Employees1
- American Federation of Musicians1
- American Federation of Teachers1
- American South1
- American Telephone and Telegraph Company1
- American University (Washington, D.C.)1
- Annie, Judy and Zeke (Musical group)1
- Apartheid1
- Arbitration (Administrative law)1
- Arbitration, Industrial1
- Automobiles1
- Autry, Gene, 1907-19981
- Aylesworth, Merlin Hall, 1886-19521
- Bakery, Confectionery, and Tobacco Workers International Union1
- Banjoists1
