The human cost of the War of 1812 was dramatic. Some 35,000 people were killed, wounded or missing at the end of the war. York (now Toronto), Niagara (now Niagara-on-the-Lake) and Washington, D.C. were torched. Elsewhere, homes and properties were looted and damaged and family lives were thrown into chaos. The borders between British North America and the United States might not have changed when the fighting stopped — the old lines were reconfirmed in the Treaty of Ghent, which ended the war on December 24, 1814. But once the treaty was signed, there wasn’t simply a return to the...