El Democrata Fronterizo. (Laredo, Tex.), Vol. 8, No. 448, Ed. 1 Saturday, April 7, 1906, newspaper, April 7, 1906; (https://texashistory.unt.edu/ark:/67531/metapth296400/m1/1/: accessed July 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .