Ontario's Historical Plaques 

Discover Ontario's history as told through its plaques

2004 - Now in our 15th Year - 2019

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The Founding of Thornhill

The Founding of Thornhill

Photos by Wayne Adam - Posted January, 2015

The Founding of Thornhill

Plaque Location

The Region of York
The Town of Markham
In Thornhill, on the southeast corner of
Yonge and Centre streets

Coordinates: N 43 48.966 W 79 25.450


Plaque Text

Settlement began here after the opening of Yonge Street in the mid-1790s and by 1802 a grist-mill and sawmill were operating on the Don River. The community developed slowly until 1829 when Benjamin Thorne built a large flour mill, tannery and store. Within a year the village also contained a post-office named "Thornhill", a church, school and tavern. Thornhill's growth as a milling and agricultural centre suffered after 1846 when the loss of British markets drove Thorne out of business. Further decline occurred when the Northern Railway bypassed the community in 1853. Recovery began with the flow of grain southward during the American Civil War and by 1867 about 700 residents were recorded. From 1931 to 1971 Thornhill was an incorporated Police Village.



Markham Plaques

Here are the visitors' comments for this page.

> Posted January 29, 2015
The plaque has been restored and replaced.

> Posted December 31, 2013
We were there to-day (Dec. 31, 2013) and there is only the post. The plaque is not there anymore.

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