Zavala County Sentinel (Crystal City, Tex.), Vol. 27, No. 8, Ed. 1 Friday, July 8, 1938, newspaper, July 8, 1938; (https://texashistory.unt.edu/ark:/67531/metapth1096920/m1/8/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .