[Handwritten Letter from Rosa Anspach to Daniel W. Kempner, August 7, 1953], letter, August 7, 1953; (https://texashistory.unt.edu/ark:/67531/metapth1343666/m1/1/: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .