Anton Rubenstein : [autographed photograph]
Frieder Weissmann : [autographed photograph]
Adele aus der Ohe : [autographed photograph]
Rubin Goldmark : [autographed photograph]
Wilhelm Backhaus : [autographed photograph]
Leonard Bernstein : [autographed photograph]
Lotte Lehmann : [autographed photograph]
Izler Solomon : [autographed photograph]
Ellen Ballon and Heitor Villa-Lobos : [photograph]
Antal Dorati : [autographed photograph]
Ernest Ansermet : [autographed photograph]
Heitor Villa-Lobos : [autographed photograph]
Thomas Beecham : [autographed photograph]
Sir Thomas Beecham : [autographed photograph]
Group photograph including Dr. David Thomson, Samuel Bronfman, Mrs. Bronfman, Sir Ernest MacMillan, and Ellen Ballon
Ernest MacMillan : [autographed photograph]
Josef Hofmann with Anton H. at piano
Olin Downes : [autographed photograph]
Douglas Clarke, Ellen Ballon, Frank Cyril James, and unknown man : [photograph]
The McGill News : Ellen Ballon and Pauline Donalda receiving honorary doctorates from McGill University
Virgil Thomson : [autographed photograph]
Alberto Erede : [autographed photograph]
Heitor Villa-Lobos : [autographed photograph]
William Schuman : [autographed photograph]
Dimitri Mitropoulos : [autographed photograph]
Lotte Lehmann : [autographed photograph]
Aaron Copland : [autographed photograph]
Abram Chasins : [autographed photograph]
Lotte Lehmann, Dr. Ross Flemington, and Ellen Ballon at Mount Allison University : [photograph]