Ontario, northern part.


C.S. Hammond & Company. Ontario, northern part., Map, [between 1910 and 1930]; (http://texashistory.unt.edu/ark:/67531/metapth288663/ : accessed December 28, 2014), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting University of Texas at Arlington Library, Arlington, Texas.

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