Jefferys, Thomas. "A map of the most inhabited part of New England." 1774. Scale ca. 1:440,000. Publisher: Thos. Jefferys. Call Number: G3720 1774.J44. Compiled by Braddock Mead (alias John Green) and first published in 1755. Re-published at the outset of the American Revolution. Engraved double lines beneath certain place-names indicate cities with longitude calculated using the marine chronometer. Retrieved from maps.bpl.org on July 10, 2008.