Campbell, Robert C. The Breckenridge American (Breckenridge, Tex.), Vol. 12, No. 7, Ed. 1, Thursday, December 10, 1931, newspaper, December 10, 1931; (https://texashistory.unt.edu/ark:/67531/metapth71465/m1/1/: accessed April 21, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .