- Falmouth Historical Society 55-65 Palmer Avenue Falmouth, MA 02541 The Historical Society office ( open 9 AM - 3 PM Monday - Thursday, 9 AM - 4 PM Friday ) located in the Conant House. Tel 508-548-4857 The Falmouth Historical Society Founded in 1900 The Oldest Historical Society on Cape Cod Massachusetts Preserving the past to enrich present and future generations Please look at our web pages ...www.falmouthhistoricalsociety.org