Bastrop Advertiser (Bastrop, Tex.), Vol. [115], No. 16, Ed. 1 Thursday, June 20, 1968, newspaper, June 20, 1968; (https://texashistory.unt.edu/ark:/67531/metapth238158/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .