Zavala County Sentinel (Crystal City, Tex.), Vol. 26, No. 15, Ed. 1 Friday, August 27, 1937, newspaper, August 27, 1937; (https://texashistory.unt.edu/ark:/67531/metapth1096836/m1/1/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .