Herrera, John J. [Letter from John J. Herrera to Roy Floyd - 1953-03-14], letter, March 14, 1953; (https://texashistory.unt.edu/ark:/67531/metapth249610/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .