Bethune-Thompson House

Built by Loyalist settler Peter Ferguson in 1784, the original log cabin on this site is one of the oldest surviving buildings in Ontario. The cabin walls were constructed using a French-Canadian technique called poteaux sur sole where vertically placed, squared logs were held together by horizontal plates located along the top and bottom. The larger home adjoining it was built in 1804 by Reverend John Bethune (1751-1815), the first Presbyterian minister in Upper Canada. This home also incorporated a French-Canadian construction technique, colombage pierroté, which used a timber frame filled with masonry rubble. The fireplace overmantle installed by Bethune is one of few remaining in the province. In 1815 David Thompson (1770-1857) acquired the house and lived here until about 1836. Thompson was an explorer and cartographer who surveyed much of what is now western Canada and mapped out the Canada-United States border. The house presents a unique architectural and historical record of early Ontario.


At Bethune-Thompson House, 19730 John Street, Williamstown.

Region: Eastern Ontario

County/District: United Counties of Stormont, Dundas and Glengarry

Municipality: Township of South Glengarry