Gammel, Hans Peter Mareus Neilsen. The Laws of Texas, 1822-1897 Volume 1, Book, 1898; digital images, (http://texashistory.unt.edu/ark:/67531/metapth5872/ : accessed June 19, 2013), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting UNT Libraries, Denton, Texas.
