[Letter from I. H. Kempner to Rosa Anspach, December 19, 1952], letter, December 19, 1952; (https://texashistory.unt.edu/ark:/67531/metapth1456956/m1/1/: accessed July 8, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .