Kempner, Isaac H. (Isaac Herbert), 1873-1967. [Letter from I. H. Kempner to W. H. Louviere, July 18, 1955], letter, July 18, 1955; (https://texashistory.unt.edu/ark:/67531/metapth1182325/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .