Zavala County Sentinel (Crystal City, Tex.), Vol. [18], No. 23, Ed. 1 Friday, November 1, 1929, newspaper, November 1, 1929; (https://texashistory.unt.edu/ark:/67531/metapth1096121/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .