Publicity photograph of Ellen Ballon
Photograph of Ellen Ballon, Fiorello H. LaGuardia, and unidentified man in uniform
Photograph of Ellen Ballon touring the West Point museum with cadets
Photograph of Ellen Ballon with West Point Military Academy cadets
Photograph of Ellen Ballon with Aaron Copland
Photograph of Ellen Ballon with unidentified woman
Photograph of Ellen Ballon with a piano
Prime Minister Wilfred Laurier : [autographed photograph]
Emma Albani : [autographed print]
Rafael Joseffy : [autographed photograph]
Ada L. Richardson : [autographed photograph]
Sydney Dalton : [autographed photograph]
Ellen Ballon performing the world premier of Heitor Villa-Lobos's Concerto No. 1 in Rio de Janeiro with Villa-Lobos conducting
Ellen Ballon in performance with Ernest Ansermet and the Orchestre de la Suisse Romande
Hugh Ross : [autographed photograph]
Dr. Charles F. Martin : [autographed photograph]
Colonel Victor Cazalet : [autographed photograph]
Virgil Thomson : [autographed photograph]
Dimitri Mitropoulos : [autographed photograph]
Heitor Villa-Lobos : [autographed photograph]
William Howard Taft : [photograph]
Elizabeth Lyon Bowes : [photograph]
William Somerset Maugham : [autographed photograph]
Douglas Clarke : [photograph]
Charles Harriss : [autographed photograph]
Frieder Weissmann : [autographed photograph]
Wilhelm Backhaus : [autographed photograph]
Ellen Ballon and Sir William C. MacDonald : [photograph]
Lotte Lehmann, Dr. Ross Flemington, and Ellen Ballon at Mount Allison University : [photograph]
Ellen Ballon with unknown woman at the opening of the Metropolitan Opera
Letter from Alice Mary, Princess of Albany, to Ellen Ballon
Letter from Alice Mary, Princess of Albany, to Ellen Ballon
Telegram from Isidore Ballon to Ellen Ballon
Autograph and musical incipits by Ignaz Moscheles
Note from Sir William Stewart Duke-Elder to Ellen Ballon
Letter from Sir Wilfrid Laurier to Ellen Ballon
Letter from Sir Wilfrid Laurier to Ellen Ballon
Letter from Sir Wilfrid Laurier to Ellen Ballon
Transcription of a letter from Franz Liszt
Postcard from Jules Émile Frédéric Massenet
Letter from Felix Mendelssohn Bartholdy to Professor Hildebrand
Letter from Yehudi Menuhin to Ellen Ballon
Letter from William Somerset Maugham to Ellen Ballon
Letter from William Somerset Maugham to Ellen Ballon
Letter from William Somerset Maugham to Ellen Ballon and Sally Ryan
Letter from William Somerset Maugham to Ellen Ballon
Letter from Camille Saint-Saens
Telegram from Arminda Villa-Lobos to Ellen Ballon
Terceiro concerto de piano e orquestra : redução para dois pianos
Concerto no. 5 for piano, opus 82 : violino primo