[Letter from I. H. Kempner, Jr., to I. H. Kempner, December 13, 1948], letter, December 13, 1948; (https://texashistory.unt.edu/ark:/67531/metapth1054325/m1/1/: accessed July 3, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .