[Letter from Robert Lee Kempner to I. H. Kempner, April 19, 1944], letter, April 19, 1944; (https://texashistory.unt.edu/ark:/67531/metapth1451880/m1/2/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .