Opera is My Hobby - Opera for Africa (series VII, n. 623); "Die Wunder der Heliane" (series VII, n. 624); Mario Filippeschi (series VII, n. 625); Catalani's "Lorelei" (series VII, n. 626), Box: 12, Folder: 45. Personal Papers of James E. Seaver, PP 534. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/163690 Accessed June 14, 2025.