Welcome to One of Ontario's Oldest Houses
Located on the shores of the Raisin River, in the quaint community of Williamstown sits one of Ontario's oldest standing homes. Sir John Johnson, a United Empire Loyalist who moved North to Montreal following the American Revolution, left behind a considerable estate in the Mohawk Valley to found and lead the King’s Royal Regiment of New York. In 1784, he was instrumental in resettling many loyalists in what is now Ontario. Johnson himself built a home and mills on the banks of river between 1784 and 1792.
We offer a variety of events throughout the year. Please join us!
New Off Season Hours: We are open Mondays
from 10 to 2 or by appointment.
Our volunteers are here to assist you. A $25 access fee applies to begin an archival
Every Friday evening July to October: Williamstown Discovery and Ghost Walks
Only 4 walks left this season. Don"t be disappointed. Call or email to reserve a spot.