Hatfield Barite Mine Records, 1840-18431 box (0.25 linear feet).
In November 1840, the prominent New York merchant firm, Josiah Macy and Son, requested Samuel Wells of Northampton to act as their agent in acquiring a lease to a tract of land in nearby Hatfield for the purpose of mining for barite. Wells involved Amherst College geology professor Edward Hitchcock in the survey for the appropriate mining site, and then during the next two years negotiated for the leases and the start up of the mining. With Hitchcock’s assistance, Wells located the mineral vein in Hatfield, about two miles west of the town village. His diagrams of the vein in his correspondence show that it crossed three property lines; those of Thomas Frary, John D. Morton, and the estate of Charles Smith.