[Letter from Elizabeth Upshur Teackle to her husband, Littleton Dennis Teackle, July 21, 1834], letter, July 21, 1834; (https://texashistory.unt.edu/ark:/67531/metapth1688109/m1/1/: accessed June 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .