[Letter from I. H. Kempner to A. T. Whayne, October 3, 1951], letter, October 3, 1951; (https://texashistory.unt.edu/ark:/67531/metapth1486051/m1/1/: accessed July 11, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .