Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 80, Ed. 1 Tuesday, April 23, 1957, newspaper, April 23, 1957; (https://texashistory.unt.edu/ark:/67531/metapth135549/m1/1/: accessed October 19, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .