Carleton, Osgood, and John Norman. "Proposals of Osgood Carleton and John Norman, for publishing by subscription, an accurate map of the commonwealth of Massachusetts, compiled according to an act, passed by the general court, from actual surveys made by their order." Ephemera. Boston: John Norman, [1797]. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:z890vh53w (accessed March 28, 2024).