CASUALTY RECORD // October 5, 1813
Battle of the Thames
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
1 sides catalogued · combined 442 estimated
Royaume-Uni de Grande-Bretagne et d'Irlande
442
Medium-confidence figure
Battle context
The Battle of the Thames, fought on October 5, 1813 near present-day Thamesville, Ontario, delivered the United States effective control of the Western District of Upper Canada. British forces under Henry Procter and their Indigenous allies suffered 442 casualties, a loss that stripped Britain of its position in the region. The death of Tecumseh in the engagement proved decisive beyond the immediate military outcome: his confederacy, which had constituted the primary organized Indigenous resistance aligned with British forces in the west, collapsed following the battle. Without that alliance, Britain's capacity to contest the western theater of the war was fundamentally undermined. For the United States, the victory consolidated gains made possible by American naval supremacy on Lake Erie and removed a coalition that had posed a sustained threat to the northwestern frontier throughout the war's early years.
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