Abram Chasins : [autographed photograph]
Ada L. Richardson : [autographed photograph]
Alberto Erede : [autographed photograph]
Alberto Jonás : [autographed photograph]
Anna Eleanor Roosevelt's response to invitation from Ellen Ballon
Antal Dorati : [autographed photograph]
Anton Rubenstein : [autographed photograph]
Arthur Rubenstein in New York : [autographed photograph]
Caprice de concert pour piano, Op. 4
Captain Victor Cazale : [autographed photograph]
Concerto para piano e orquestra : [autograph manuscript]
Concerto para piano e orquestra : clarinete baixo
Concerto para piano e orquestra : primiero e segundo fagotes
Concerto para piano e orquestra : primiero e segundo fagotes
Concerto para piano e orquestra : primiero e segundo trombone
Concerto para piano e orquestra : primiero e segundo trombone
Concerto para piano e orquestra : terceiro e quarto Fa horns
Concerto para piano e orquestra : terceiro e quarto Fa horns
Concerto para piano e orquestra : terceiro e quarto trombone
Concerto para piano e orquestra : tuba
Csárdás no. 2
Douglas Clarke, Ellen Ballon, Frank Cyril James, and unknown man : [photograph]
Dr. Charles F. Martin : [autographed photograph]
Ellen Ballon and Sir William C. MacDonald : [photograph]
Ellen Ballon as a child : [photographs]
Ellen Ballon with unknown woman at the opening of the Metropolitan Opera
Emma Albani : [autographed print]
Envelope from William Somerset Maugham to Ellen Ballon, Ryan Gustafson, and Sally Ryan
Envelope from Sir Wilfrid Laurier to Ellen Ballon
Envelope from William Somerset Maugham to Ellen Ballon
Envelope from William Somerset Maugham to Ellen Ballon
Ernest MacMillan : [autographed photograph]
Etude de concert, Op. 1, no. 1
Frank Cyril James : [autographed photograph]
Group photograph including Dr. David Thomson, Samuel Bronfman, Mrs. Bronfman, Sir Ernest MacMillan, and Ellen Ballon
Harold Bauer : [autographed photograph]
Heitor Villa Lobos and Arminda Villa Lobos in New York
Hugh Ross : [autographed photograph]
In the rushes, Op. 12, no. 3
Izler Solomon : [autographed photograph]
John Finley : [autographed photograph]
Konzert etüde, op. 22 no. 1
Letter from Edna Ferber to Ellen Ballon, Sally Ryan, and Ralph Gustafson
Letter from Frank Cyril James to Ellen Ballon
Letter from Frank Cyril James to Ellen Ballon
Letter from Josef Hofmann to Ellen Ballon
Letter from Lotte Lehmann to Ellen Ballon
Letter from Major John White Hughes Bassett to Ellen Ballon
Letter from Sir Wilfrid Laurier to Ellen Ballon
Letter from Sir Wilfrid Laurier to Ellen Ballon