Kempner, Isaac H. (Isaac Herbert), 1873-1967. [Letter from Isaac Herbert Kempner to William H. Louviere, March 26, 1954], letter, March 26, 1954; (https://texashistory.unt.edu/ark:/67531/metapth1134051/m1/1/: accessed June 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .