- Bona Fide Photo (Chicago, Ill.)1
- Boyd, Don1
- Brotherhood of Locomotive Engineers (U.S.)1
- Buckingham Studio Photographers (Washington, D.C.)1
- Central Studios (Atlantic City, N.J.)1
- Chase News Photo (Washington, D.C.)1
- Del Akers Photographers (Washington, D.C.)1
- Georgia Federation of Labor1
- Harnage, Bobby1
- Hollywood Studio1
- International Union of Electrical, Radio and Machine Workers1
- International Union of Electronic, Electrical, Technical, Salaried & Machine Workers, AFL-CIO1
- International United Brotherhood of Leather Workers on Horse Goods1
- Jacobs, Joseph, 1908-19981
- Jones, Rick1
- Knights of Labor1
- Lawrence, Ken, 1942-1
- Malschick, Allen1
- McDaniels, F. A.1
- Merritt, Joe1
