Opera is My Hobby - Valetti (series VII, n. 6); Werther (series VII, n. 7); Italian Art Songs (series VII, n. 8); Nielsen (series VII, n. 9); Mefistofele (series VII, n. 10), Box: 10, Folder: 29. Personal Papers of James E. Seaver, PP 534. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/163545 Accessed June 13, 2024.