The Sonora Sun. (Sonora, Tex.), Vol. 5, No. 20, Ed. 1 Saturday, July 20, 1907, newspaper, July 20, 1907; (https://texashistory.unt.edu/ark:/67531/metapth979189/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .