Doors Open Ontario

Bethune-Thompson House Doors Open Cornwall and SDG Counties

Bethune-Thompson House

This home encompasses the original 1784 "poteaux sur sol" (vertical-log) cabin of Loyalist Peter Ferguson, as well as the 1804 house of Reverend John Bethune, Upper Canada’s first Presbyterian minister, and David Thompson, one of Canada’s earliest map-makers. The Ontario Heritage Trust acquired it in 1977, restoring it in the 1980s. It is the oldest residence owned by the Trust.

Tell us your story about this site

  • Parking
  • Washrooms
  • French services available
  • National Historic Site (Canada)
  • Kid-friendly
  • Guided tours available
  • Site has blue and gold provincial plaque

Contact info

19730 John Street
Williamstown, Ontario


Year built: 1784

Dates/hours open

Saturday August 17 – Sunday August 18, 2019
Saturday and Sunday: Noon to 5 p.m.

Bethune-Thompson House 19730 John Street