The Boerne Star (Boerne, Tex.), Vol. 63, No. 23, Ed. 1 Thursday, May 9, 1968, newspaper, May 9, 1968; (https://texashistory.unt.edu/ark:/67531/metapth1523992/m1/2/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .