Southwestern road map : 1929 official road map (showing roads radiating from El Paso, Texas with mileage between points)., map, 1929; (https://texashistory.unt.edu/ark:/67531/metapth187674/m1/1/: accessed June 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .