- AFL-CIO. Civil Rights Department4
- Brooks, Thomas R.1
- Federation of Southern Cooperatives. Land Assistance Fund1
- Feldman, Paul1
- Fried, Morris L.1
- Kabn, Tom1
- Kemble, Penn1
- Keown, Woodrow1
- League for Industrial Democracy1
- National Association for the Advancement of Colored People1
- Paige, Ralph1
- Puddington, Arch1
- Rustin, Bayard, 1912-19871