Letter – 18 June 1937

W.A. Rush, Controller of Radio to E.A. Baker confirming that free licences for private radio receiving will available for applicants certified by CNIB as having vision loss

Letter – 30 January 1918

Sir Frederick Fraser to Sherman Swift thanking him for a donation and describing the Halifax Explosion casualties

Letters – 30 April 1938 and 16 May 1938

W.M. Eager, National Institute for the Blind (UK) to E.A. Baker and S.C. Swift to E.A. Baker - Correspondence regarding the fragility of talking book records being sent from England and the possibility of film as a replacement

Letter – 1 April 1948

W.J. Turnbull, Deputy Postmaster General, to E.A. Baker confirming that in future "books printed in raised characters and sound reproduction records, mailed in Canada for delivery in Canada, are to be accepted free of postage..."