Many thanks and appreciation to Esther Rancier for contributing this information. Esther is researching in Richland and Mexico the Soul/Soule, Brace and Daniel P. Smith families, and would appreciate hearing from anyone researching these surnames. 
Esther Rancier at: [email protected] 

In 1801 John Morton put up a log house in Mexico. Three years later he erected a saw mill which was also combined with a mill for grinding feed and the pioneers brought corn on their backs from miles around to be ground there. Matthias Whitney & Son bought the mill in 1811 and put in two run of stone. In 1827 it passed into the hands of Dennis Peck who sold out to Wm. Goit and he in turn to David Goit. Almeron C. Thomas in 1864 was followed by his son Amos C. Thomas, who was succeeded by his brother Frederick A. Thomas. The mill was turn down within the past two or three years. The Osborne Mill stands on the site of this old building. Leonard Ames succeeded Morton in running the saw milL

SOURCE: "Grips" Historical Souvenir of Mexico, N.Y. [1903] p.37.