Pilot Grove Quadrangle, map, 1974; (https://texashistory.unt.edu/ark:/67531/metapth108409/m1/1/: accessed May 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Pilot Grove Quadrangle, map, 1974; (https://texashistory.unt.edu/ark:/67531/metapth108409/m1/1/: accessed May 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .