What We Do

Preserving, promoting, and protecting
Founded in 1888, The Ontario Historical Society is a non-profit corporation and registered charity; a non-government group bringing together people of all ages, all walks of life and all cultural backgrounds interested in preserving some aspect of Ontario’s history.
The OHS has a provincial mandate, but its headquarters is located at the historic John McKenzie House (built 1913) in Willowdale, Ontario. John McKenzie House, and its adjacent stables and milk-house are all designated under the Ontario Heritage Act.
The OHS is governed by an all-volunteer board of directors, and is supported by and supports its vast network of member individuals, organizations and institutions, including the OHS’s 350+ affiliated societies.

Become a member of the OHS to receive email updates, announcements, and news.

OHS Bulletin

The official newsletter of The Ontario Historical Society
August 2022 OHS Bulletin

In This Issue:

  • Remembering No.2 Construction Battalion in Owen Sound
  • AAO Archeion Brings Ontario’s History to You
  • President’s Report
  • OHS AGM Registration Now Open, Steve Paikin Will Deliver Keynote
  • Executive Director’s Report
  • Cemetery Defence News
  • OHS Welcomes New Minister, Hon. Neil Lumsden
  • Museum Milestones
  • Preserving Mennonite History in Essex-Kent
  • Barry Penhale’s Ontario
  • From the Bookshelf

Become a member of the OHS to receive this newsletter in print and/or by email.

Latest News

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Next Events

Upcoming events across Ontario

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Looking forward to celebrating this anniversary with the SilverShoe Historical Society.


Great review of my book "Extraordinary History of Flamborough" by the @OntarioHistory (read on pages 7-8).

Link to OHS bulletin: https://www.tidridge.com/uploads/3/8/4/1/3841927/ohs_bulletin_220_-_aug_2022_-_digital_final.pdf

#Waterdown #Flamborough #HamOnt #LocalHistory #CanHist

Margaret Carson & Sharon Anne Cook will be at the @OntarioHistory's John Mackenzie House on August 13 at 2PM for the book launch of Toronto Star bestseller THE CASTLETON MASSACRE. Stop by to hear Margaret & Sharon's moving personal account on a tragedy that changed their lives.

Check out the new historical display and information kiosk on Thunder Bay’s waterfront. The kiosk is mounted on a replica of the Thunder Bay Main Lighthouse and will help connect visitors with nearby heritage sites. Well done, Canadian Lighthouses of Lake Superior!


It was an honour to attend Grey County Black Heritage Society’s event yesterday afternoon, honouring and remembering Black Canadians who served in the No.2 Construction Battalion in WWI, a segregated military unit. An official apology from the Gov of Canada will be issued July 9.

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