Lake Travis News (Austin, Tex.), Vol. 5, No. 6, Ed. 1 Friday, May 4, 1973, newspaper, May 4, 1973; (https://texashistory.unt.edu/ark:/67531/metapth1297747/m1/1/: accessed June 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .