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Mailing address:
P.O. Box 97
Haddam, CT 06438

14 Hayden Hill Road, Haddam CT 06438

The Haddam Historical Society is a nonprofit, tax -exempt organization founded in 1955. Our mission is "to preserve, collect, interpret and promote the history and heritage of Haddam for present and future generations."

The Society operates the Thankful Arnold House Museum and the Wilhelmina Ann Arnold Barnhart Memorial Garden in the scenic lower Connecticut River Valley village of Haddam, Connecticut. Visitors hear the story of the Widow Arnold and that of her daughter and granddaughter. Representative of their time, these three generations of women were head of the household in the home that was built between 1794 and 1810. The house is open year round. The museum is a proud member of the Connecticut Women's Heritage Trail. 

Wednesday 9 am to 3 pm
Thursday 2 pm to 8 pm
Friday 12 pm to 3 pm

Summer Sundays 1 pm to 4 pm 

Memorial Day through Columbus Day

The Society also offers a variety of educational and entertaining programs throughout the year including local history lectures, walking tours, exhibits and hands-on workshops in addition to hosting the Connecticut Spring Antiques Show, one of the nation's premiere pre-1840 Americana venues. Our School Programs make history come alive by inviting students to experience life in a 19th century home and participate in activities of the community for that period. The Society maintains the house furnishings as well as an extensive collection of items and archives relating to the history of Haddam, Higganum and Haddam Neck. The archives are available to researchers and scholars by appointment. 

Click here for the latest news and events.

Browse our Programs and Events or take an on-line tour of the Thankful Arnold House. Learn about Haddam's Historic Places or read our latest newsletter. Please feel free to contact us

Haddam Historical Society
P.O. Box 97
Haddam ,CT 06438

Museum located at 14 Hayden Hill Road, Haddam, CT 06438

Phone: 860-345-2400

Connecticut's Historic Gardens

Thankful Arnold House Garden

Haddam Historical Society Historic House Plaque Program


Program Videos

Shad Fishing in Haddam

Scovil Hoe
Lindamae Peck



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News and Events
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The Museum and Office will be closed from
December 20 to
December 26, 2017

Holiday Story Time
December 16 at 10 am

Store Open
Dec. 16, 10 am to 2 pm
Dec. 17, 1 pm to 4 pm

Information on Hike

Winter Woolies
January 21, 2018
February 4, 2018

2017 Founders' Day Award
given to Tiger Carlson
Read More

Museum receives grant from The Community Foundation of Middlesex County for garden brochure

Read more here

December 14,2017

October 11, 2017
September 20, 2017
September 8, 2017

August 17, 2017

July 20, 2017
June 28, 2017

May 26, 2017
April 6, 2017

March 13, 2107

January 17, 2017

December 13, 2016
November 18, 2016
October 11, 2016
September 14, 2016
August 5, 2016
June 17, 2016
The Shad are MOVING
April 28, 2016
April 13, 2016 e-news
April 1, 2016 e-news