Part of the Frick Collection Archives Repository
August, 1913 – April, 1914, Box: 1, Folder: 13. Walter and Matilda Gay Collection, MS.059. Frick Collection Archives.
August, 1913 – April, 1914, Box: 1, Folder: 13. Walter and Matilda Gay Collection, MS.059. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/19736 Accessed August 16, 2025.
