Costley, John M. & Brown, Frank. Documents pertaining to the case of The State of Texas vs. Thomas Elgin, Owen Adkins, John Wooldridge, John Haynie, cause no. 367, 1853, legal document, 1853; (https://texashistory.unt.edu/ark:/67531/metapth193995/m1/1/: accessed December 18, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .