El Democrata Fronterizo. (Laredo, Tex.), Vol. 14, No. 709, Ed. 1 Thursday, May 29, 1919, newspaper, May 29, 1919; (https://texashistory.unt.edu/ark:/67531/metapth296713/m1/1/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .