Street Address
14 Hayden Hill Road
Haddam, CT 06424
Mailing Address
P.O. Box 97
Haddam, CT 06438
phone: 860-345-2400
Wednesday 9:00 am - 3:00 pm
Thursday 2:00 pm - 8:00 pm
Friday 12:00 pm - 3:00 pm
Sunday (during summer only!) 1:00 pm - 4:00 pm

adults - $4
seniors - $3
children - $2
Elizabeth Malloy, Executive Director
phone: 860-345-2400


Haddam Historical Society is a growing and community based organization which owns and operates the Thankful Arnold House Museum. The museum tells the story of an early 19th century CT River Valley wife and mother who faced tragedy and adversity but kept her family together and home intact.


Society founded in 1955 and museum opened in 1965.

Artifacts Collections

Objects, manuscripts, photographs and archives related to history of Haddam, Higganum and Haddam Neck.

Research Collections

Reference files with information on the history of Haddam, Higganum and Haddam Neck.

Educational Programs

School programs for local school system grades 2 through 7. Adult educational programs quarterly including Old House Enthusiasts Group, HOuse Tours, History Walking Tours, Local History Lectures and other.


Board of Directors


Access: General Public

Appointment required: Yes


Newsletter published twice yearly.

  • Past and Present Winter Issue
  • Past and Present Summer Issue