Opera is My Hobby - Die Walküre, Act 2 (series VI, n. 98); Homer (series VI, n. 99); Rosenkavalier (series VI, n. 100), Box: 10, Folder: 22. Personal Papers of James E. Seaver, PP 534. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/163538 Accessed May 17, 2024.