Viesca, Agustín. [Transcript of Letter from Agustín Viesca to Stephen F. Austin, November 11, 1835], letter, November 11, 1835; (https://texashistory.unt.edu/ark:/67531/metapth217742/m1/1/: accessed May 27, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .