Opera is My Hobby - Alma Gluck (series VII, n. 519); "Le Roi d'Ys" (series VII, n. 520); Grace Bumbry (series VII, n. 521); Mozart Gala with Peter Schreier (series VII, n. 522), Box: 12, Folder: 19. Personal Papers of James E. Seaver, PP 534. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/163664 Accessed May 17, 2024.