El Democrata Fronterizo. (Laredo, Tex.), Vol. 14, No. 800, Ed. 1 Friday, May 30, 1919, newspaper, May 30, 1919; (https://texashistory.unt.edu/ark:/67531/metapth296714/m1/1/: accessed June 18, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .