Kempner, Jeane Bertig. [Letter from Jeane Kempner to Emile Frankl, April 1, 1957], letter, April 1, 1957; (https://texashistory.unt.edu/ark:/67531/metapth1384801/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .