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Trejo, Raul. Rio Grande Herald (Rio Grande City, Tex.), Vol. 32, No. 30, Ed. 1 Thursday, May 16, 1974, newspaper, May 16, 1974; (https://texashistory.unt.edu/ark:/67531/metapth194459/m1/21/: accessed January 24, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .