Freydberg, G.H.& E., Co. Strikes 1954., Box: 12, Folder: 1. International Ladies Garment Workers Union. Frederick F. Umhey, Executive Secretary. Correspondence, 5780/005.. Kheel Center for Labor-Management Documentation & Archives. https://archives.library.cornell.edu/repositories/4/archival_objects/1438802 Accessed April 10, 2026.