Zavala County Sentinel (Crystal City, Tex.), Vol. 22, No. 15, Ed. 1 Friday, September 1, 1933, newspaper, September 1, 1933; (https://texashistory.unt.edu/ark:/67531/metapth1096640/m1/8/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .