Part of the Frick Collection Archives Repository
Knox, Hetty E., 1976, Box: 7, Folder: 20. Helen Clay Frick Papers, Series II: Correspondence, FFP.02.02. Frick Collection Archives.
Knox, Hetty E., 1976, Box: 7, Folder: 20. Helen Clay Frick Papers, Series II: Correspondence, FFP.02.02. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/9587 Accessed March 15, 2025.
