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
Corporate Name:	Humbolt Exchange Building
Building Illustration:	yes
Address:	2601 South 11th St.
Volume:	I
Issue:	25
Date of Publication:	May 26, 1928
Page:	1, 3