EASTHAMPTON, a town of Hampshire county, Massa chusetts, U.S.A., in the Connecticut river valley, 17 m. N.W. of Springfield, just west of Mount Tom. It is served by the Boston and Maine and the New York, New Haven and Hartford railways. Pop. (1920) 11,261; and in 1930 it was 11,323. It has im portant manufactures (including cotton, rayon, mercerized and elastic fabrics, felt, rubber thread and bands and fireproof doors), with an output in 1927 valued at $16,201,0S7. The manufacture of cloth-covered buttons (long a leading industry but now dis continued) was built up by Samuel Williston (1795-1874) and his wife Emily Graves Williston, who first did the work by hand, then (182 7) experimented with machinery, and in 1848 built a factory; and who in 1841 founded Williston academy, one of the oldest preparatory schools in New England. Easthampton was formed from parts of Northampton and Southampton in 1785 and was incorporated as a town in 1809.