Correspondence and notes about Mrs. Rufus Osgood Mason; Edmund Biddle, Cornelia Chapin, 1971, 1983, Box: 15, Folder: 15. Personal papers of Robert E. Hemenway, PP 487. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/295424 Accessed November 23, 2024.