ALS-BrunoWalter; LS-Charles Triller; LS-William Jah Schieffelin, chairman of the American Friends of Czechoslovakia Society; Press Release on Bruno Walter; 50th Anniversary of Bruno Walter as a conductor correspondence; Congratulatory letters to Bruno Walter on his 50th anniversary; Refusal by BrunoWalter to accept position as Music Director; Programming for Columbus Day Concert, 1942; Bruno Walter letter accepting to conduct the 1944-45; Sympathy telegrams from Philharmonic staff to Bruno Walter on the death of his wife; Pension Fund concert; Annual wartime performances of Bach's "St. Matthew Passion"; First Philharmonic performances of Gustav Mahler, Symphony No. 9, Dec 1945