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.

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Next Events

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The 2022 Autumn issue of Ontario History journal is now available online:


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!


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