Galveston Chamber of Commerce. [Letter from Galveston Chamber of Commerce, February 11, 1957], letter, February 11, 1957; (https://texashistory.unt.edu/ark:/67531/metapth1463394/m1/6/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .