Opera is My Hobby - In Memoriam: Treigle (series VII, n. 365); Vezzani (series VII, n. 366); Villabella (series VII, n. 367); In Memoriam: Leonard Warren (series VII, n. 368), Box: 11, Folder: 55. Personal Papers of James E. Seaver, PP 534. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/163626 Accessed June 14, 2024.