[Letter from L. D. Haskew to Mrs. Mary Moody Northen, April 23, 1959], letter, April 23, 1959; (https://texashistory.unt.edu/ark:/67531/metapth1507164/m1/5/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .