Assistant to Harry W. Tyler, 1892-1902. "One of Miss Comstock's duties was to use the telephone for General Francis Amasa Walker, MIT's third president, who refused to touch the new-fangled gadget." Assistant to Registrar Walter Humphreys, 1902-1922. Office of Registrar Joseph C. MacKinnon, 1922-1952. Served under 10 different MIT presidents.