Collin County Genealogical Society. Collin Chronicles, Volume 1, Number 2, March-April, 1981, periodical, 1981; (https://texashistory.unt.edu/ark:/67531/metapth10836/m1/1/: accessed November 17, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .