Fort Griffin Echo (Fort Griffin, Tex.), Vol. 2, No. 11, Ed. 1 Saturday, March 20, 1880, newspaper, March 20, 1880; (https://texashistory.unt.edu/ark:/67531/metapth233106/m1/2/: accessed May 21, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .