Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 158, Ed. 1 Friday, August 9, 1957, newspaper, August 9, 1957; (https://texashistory.unt.edu/ark:/67531/metapth135626/m1/1/: accessed May 23, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .