King's Men is the story of the Loyalist regiments who became the soldier founders of the Province of Ontario, the Loyal Colonials who joined the Provincial Corps of the British Army, Canadian Command, during the American revolution. By the time the Treaty of Separation was signed in 1783, four full-strength corps were serving in Canada. These were the Royal Highland Emigrants (placed on the regular establishment in 1778, as the 84th Foot), the King's Royal Regiment of New York, Butler's Rangers, and the Loyal Rangers. A fifth corps, the King's rangers, amounted to three full companies. King's Men fills a gap in tracing the lives of these United Empire Loyalists who first fought under British command, and who spent a difficult period as displaced persons in Canada (people whose only desire was to return to their homes in Britain's older colonies) till the time when they accepted Canada as a new homeland.