Freie Presse für Texas. (San Antonio, Tex.), Vol. 53, No. 1134, Ed. 1 Thursday, April 18, 1918, newspaper, April 18, 1918; (https://texashistory.unt.edu/ark:/67531/metapth1089522/m1/3/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .