Has New Haven Colony and Town records, Dana collection, housing archives, Lee collection on microfilm, collections of various New Haven personages and organizations throughout the ages. Very supportive and knowledgeable staff. A catalog of the manuscript collections is available at the Society as well as at Yale and New Haven libraries. Collection is non-circulating. Large map room with tax assessment and zoning maps.
Many collections are incomplete.
Copies are .25 per page. Compactness makes it a nice place to research. City Year Books, City Directories, city charters and ordinances. Weak on maps and pre-1850 primary sources. A few secondary sources available in the library's circulating collection.