Missouri-Kansas-Texas Railroad Smithville District Seniority List: Train Porters, January 1949, text, January 1, 1949; (https://texashistory.unt.edu/ark:/67531/metapth1150710/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .