Opera is My Hobby - Russian Opera (series IV, n. 2); A Year Abroad (series V, n. 1); Tebaldi and Callas (series V, n. 2), Box: 9, Folder: 73. Personal Papers of James E. Seaver, PP 534. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/163513 Accessed June 14, 2024.