Leavitt, Moses A. [Letter from Moses A. Leavitt to Mr. I. H. Kempner, January 7, 1958], letter, January 7, 1958; (https://texashistory.unt.edu/ark:/67531/metapth1496599/m1/1/: accessed April 24, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .