[Letter from James Schmidt to Harris L. Kempner & Kempner, Jr., November 17, 1964], letter, November 17, 1964; (https://texashistory.unt.edu/ark:/67531/metapth1425278/m1/1/: accessed June 24, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .