Source: The Broadcaster, December 1, 1927, to April 19, 1932 (newsletter published in St. Louis by the Arkansas-Missouri Plant Department, Southwestern Bell Telephone Company)
Location: Frances L. Dewey Papers, Archives
Last Name:Mack
First Name:John
Title:Mrs.
Volume:III
Issue:25
Date of Publication:July 19, 1930
Page:1, 4