Roberts, Kenneth. The Rio Grande Herald (Rio Grande City, Tex.), No. 23, Ed. 1 Thursday, April 14, 1988, newspaper, April 14, 1988; (https://texashistory.unt.edu/ark:/67531/metapth195128/m1/2/: accessed April 22, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .