Thistle Ha'
This farm was acquired about 1848 by John Miller, a Scottish immigrant who became a pioneer importer and breeder of pedigreed livestock in Canada. In 1852 the Millers began importing quality stock, notably shorthorn cattle, Clydesdale horses and later Shropshire sheep from the United Kingdom. Miller's example, as well as the animals bred at Thistle Ha', played an important role in improving stockbreeding throughout North and South America in the 19th century. Succeeding generations of Millers have maintained the farm's reputation for raising fine blooded stock.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.