- Historic Places - List of properties in New Haven County on the National Register of Historic Places.
archnet.uconn.edu/topical/crm/conn/chc/newhaven.html
- Rev. Richard Mansfield House - 18th Century saltbox style home located in Ansonia.
electronicvalley.org/derby/history/mansfield.htm
- Whitfield, Henry, House - National Historic Landmark located in Guilford, Connecticut.
tps.cr.nps.gov/nhl/detail.cfm?ResourceId=1074057530&ResourceType=Building
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