Government Printing Office. “The Avalon Project: Fundamental Agreement, or Original Constitution of the Colony of New Haven, June 4, 1639.” Yale Law School, 2016. Link.
Wadsworth, James. “A Plan of the Town of New Haven with All the Buildings in 1748.” New Haven, CT: T. Kensett, 1806. University of Connecticut Libraries, Map and Geographic Information Center - MAGIC, Yale University Library, Map Collection. Link.
“An Ethnic History of New Haven.” The Ethnic Heritage Center, 2013. Link.
Visscher, Nicolaes. “Novi Belgii Novæque Angliæ: Nec Non Partis Virginiæ Tabula Multis in Locis Emendata.” Cartographic. Amsterdam?, 1685. Library of Congress, Geography and Map Division. Link.