Opera is My Hobby - Lehar's Operetta "Das Land des Lachelus" (series VII, n. 727); American mezzo-soprano Dolora Zajick (series VII, n. 728); Donizetti's "Rosamunda d'Inghilterra" (series VII, n. 729), Box: 12, Folder: 72. Personal Papers of James E. Seaver, PP 534. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/163717 Accessed June 22, 2025.