Matheson House
Built in 1840 of local sandstone, the Matheson House is an outstanding example of early Scottish-Canadian architecture. Its design is imposing, its stonework remarkably fine, and it occupies a key position in one of the best surviving streetscapes in Canada characteristic of this important architectural tradition. The house was originally owned by the Hon. Roderick Matheson, a prominent citizen of Perth and one of the Dominion's first senators. It remained in the possession of the Matheson family for nearly 100 years.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.