Map of Patucket in the Town of Chelmsford 1821
A plan of sundry farms etc. at Patucket in the town of Chelmsford
Map of Patucket in the Town of Chelmsford 1825
Hale's Map of Lowell 1831- detail "Reference"
Hale's Map of Lowell 1831 (see the "Interactive exhibits" page for an up-close and detailed look at this map; also see "Map of Lowell in 1831" for more views of the map)
Geological Map of Massachusetts 1832
View of Lowell, 1834, by E. A. Farrar (see the "Interactive exhibits" page for a close-up and detailed view of this lithograph)
Map of the city of Lowell : surveyed in 1841
1850 "Plan of the City of Lowell Massachusetts from actual surveys by Sidney & Neff"
