Opera is My Hobby - Hvorostousky (series VII, n. 533); "Gerusalemme" (series VII, n. 534); Giacomo Aragall (series VII, n. 535); "King Roger" (series VII, n. 536); "La Muette de Portici" (series VII, n. 537), Box: 12, 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/163667 Accessed May 17, 2024.