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.
File contains correspondence and a certificate from the Secretary of the Board of Governors of McGill University regarding the proceeds from the Martlet Concert and Ball as well as Ellen Ballon's general support of the McGill music program.
File contains letters concerning Ellen Ballon's performance of music by Heitor Villa-Lobos and the receipt of flowers. File also contains a letter to Ballon from Mary Goldie, Private Secretary to Princess Alice, concerning a letter from the latter and Lord Athlone to Dr. James (presumably Frank Cyril James) at the fiftieth anniversary of the founding of the McGill Conservatorium of Music.
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.
Item is a note from William "Willie" Somerset Maugham written to Ellen Ballon on the reverse side of an advertisement for three recitals in New York (April 4, 11, 25, 1945) performed by Ellen Ballon and recorded by the radio station WNYC.
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 contains letters to Ellen Ballon from William Somerset Maugham concerning gifts, performances, visits, friends, and books. Some of the letters are also addressed to Sally "Tammie" Ryan and Ralph Gustafson.