The Haddam Historical Society
Haddam Historical Society Thankful Arnold House History of Haddam Haddam Historic Sites
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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 open on an
Wednesday, Thursday or Friday

Visitors must call ahead for an appointment at least 48 hours in advance so we can make sure staff is available. MASKS required and social distancing will be followed.

Make a Donation Today

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. 

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

Documenting Covid-19 Pandemic in Haddam 2020

Link to online survey
PDF of survey

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


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