Fonds contains correspondence, musical scores (piano and orchestral), photographs, a sketch, harmony notebooks, fliers, programs, newspaper clippings, academic journals, a press book, scrapbooks, and letters of composers. The musical scores include several first edition copies and autograph manuscripts. All personal correspondence is incoming correspondence; no outgoing correspondence is included in this fonds.
Series contains newspaper clippings about Ellen Ballon. Clippings include articles about a variety of subjects, including Ellen Ballon's life in general, concerts, and her hobbies.
File contains a newspaper article on Ballon's performance at the Prom concert series in London, England, and two pages of photocopied news articles on the same performance.
Item is a handwritten letter from Heitor and Arminda Villa-Lobos to Ellen Ballon written on July 26, 1947. The letter details Villa-Lobos itinerary on a European tour and comments on Ballon's performances of Villa-Lobos' compositions. Item is accompanied by the stamped air mail envelope in which Ballon received the letter. One French postage stamp is affixed to the envelope.
Item is a vocal score with the melody and lyrics for "La Paimpolaise" by the French singer-songwriter Théodore Botrel (1868-1925). The score and lyrics were handwritten by L. Coyteux Preouèl(?) in Ottawa on April 29, 1908.