1821 A Plan of Sundry Farms Patucket in the Town of Chelmsford. Lowell Historical Society [LHS]
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1821 A Plan of Sundry Farms Patucket in the Town of Chelmsford. Lowell National Historical Park [LNHP]
A plan of sundry farms etc. at Patucket in the town of Chelmsford, originally published 1821, Reduced from the original plan, for the Props. of Locks & Canals on Merrimack River, Nov. 1871. Map reproduction courtesy of the Norman B. Leventhal Map & Education Center at the Boston Public Library
