| Source: Program for March-on-Washington Movement Mass Meeting, Municipal Auditorium (Convention Hall), St. Louis, Mo., August 14, 1942 Location: Mary T. Hall Papers, Box 15, Folder 9 | |
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| Last Name: | Clay |
| First Name: | William |
| Middle Name: | E. |
| Corporate Name: | Clay's Service Station |
| Address: | 3740 Enright |
| Advertisement: | yes |
| Page: | 8 |
