[Transcript of Letter from R. W. Wells to J. F. and S. Perry, July 21, 1830], letter, July 21, 1830; (https://texashistory.unt.edu/ark:/67531/metapth217441/m1/1/: accessed February 17, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .