I agree with Michael that most people traveling to St. Clair Co. in the 1840's traveled by water via the Erie Canal and the Great Lakes; however, it was possible to take a land route through Ontario (Canada West) as well. It would have been more arduous and the area sparsely settled but pioneers did travel that way by wagon, horseback and foot, and crossed the St. Clair River into Michigan by ferry or flatboat. It was also possible to travel by water through Ontario using the Thames River and the Sydenham River. The city of London, Ontario, was pretty well settled at that date and would make a good jumping off point for the wilderness between it and Michigan, now about an hour's drive by car.