4. "In 1794 a map or plan of the Town was made from a
survey by Frederick French. From this map it appears
that there were at that time two sawmills and one corn-
mill on the Merrimack river at Pawtucket falls; one
sawmill and one set of iron-works on Concord river near
its mouth; one sawmill on the canal near where it
emptied into the Concord river; one clothier's mill; one
saw- and grist-mill upon River Meadow brook: these
were all within the limits of the present City of Lowell. A
grist-mill and sawmill are shown upon Stony brook, at
what is now North Chelmsford; a grist-mill on Beaver
brook at the centre of the Town, and one on Great brook
(then the Adams mill). "
Wilson Waters, History of Chelmsford
