Freie Presse für Texas. (San Antonio, Tex.), Vol. 42, No. 7581, Ed. 1 Monday, April 1, 1907, newspaper, April 1, 1907; (https://texashistory.unt.edu/ark:/67531/metapth1084575/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .