File contains a letter from Walter de Mouilpied to Ellen Ballon, written on September 30, 1952. The letter thanks Ballon for a performance she gave at an honorary dinner. Item is accompanied by the stamped envelope in which Ballon received the letter. The postage stamp has been removed from the envelope.
File contains a letter from Yehudi Menuhin to Ellon Ballon written on December 2, 1957. The letter concerns a performance by Ellen Ballon in Montreal. Item is accompanied by the Ritz Carlton Montreal envelope in which Ballon received the letter.
File is a manuscript with three numbered pieces by Alfred La Liberté: "Pensée Tendre" (D-flat Major), dedicated to Katherine Sneed; "Prière (Choral)" (D Major), dedicated to Marcel Dupré; and "Dance-Song" (b minor).