Kempner, Isaac H. (Isaac Herbert), 1873-1967. [Letter from I. H. Kempner to Lyndon B. Johnson, March 10, 1951], letter, March 10, 1951; (https://texashistory.unt.edu/ark:/67531/metapth1490560/m1/1/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .