Roberts, Kenneth. The Rio Grande Herald (Rio Grande City, Tex.), No. 29, Ed. 1 Thursday, May 14, 1987, newspaper, May 14, 1987; (https://texashistory.unt.edu/ark:/67531/metapth195080/m1/1/: accessed May 2, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .