The Boerne Star (Boerne, Tex.), Vol. 62, No. 20, Ed. 1 Thursday, April 20, 1967, newspaper, April 20, 1967; (https://texashistory.unt.edu/ark:/67531/metapth1522048/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .