Kempner, Harris Leon. [Letter from Harris Leon Kempner to Shrub, and Sandy, February 26, 1963], letter, February 26, 1963; (https://texashistory.unt.edu/ark:/67531/metapth1446866/m1/1/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .