[Letter from Roma Lipowska to I. H. Kempner, September 21, 1948], letter, September 21, 1948; (https://texashistory.unt.edu/ark:/67531/metapth1447111/m1/4/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .