1896-1898 Primary sources
McNally, Rand. "Rand, McNally & Co's new business atlass map of Texas." Digital Public Library of America. Rand McNally, n.d. Web. 21 Mar. 2017.
Pughe, J. S. , Artist. A result of the system / J.S. Pughe. N.Y.: Published by Keppler & Schwarzmann. Photograph. Retrieved from the Library of Congress, <https://www.loc.gov/item/2012648580/>.