Provost Marshal William Cunningham

William Cunningham arrived in the American colonies from Ireland in the years before the Revolution with a history already marked by violence and a disposition toward cruelty that would find institutional expression in wartime. He aligned himself with the Loyalist cause early and worked as a British recruiting agent, activities that brought him into direct conflict with patriot communities before the fighting began. His experiences during those pre-war years — including reported mistreatment at the hands of patriot crowds — appear to have sharpened a personal animosity toward Americans that he would exercise with lethal effect once the British occupation of New York gave him formal authority.

Appointed Provost Marshal of New York after the British captured the city in September 1776, Cunningham was placed in charge of all American prisoners held in the city's jails, churches, and sugar houses, and later oversaw the infamous prison ships moored in Wallabout Bay. In that capacity he presided over conditions that killed thousands of American captives through deliberate neglect and active malice. Rations allocated by the British command for the prisoners were systematically diverted or sold for personal profit, leaving men to starve. Medical care was withheld, overcrowding was allowed to reach catastrophic levels, and those who complained were reportedly subjected to beatings and summary punishment. Estimates of the total deaths from disease, starvation, and exposure in New York's prison system range from eight thousand to eleven thousand — far exceeding the number of Americans killed in combat during the entire war.

Cunningham was eventually removed from his post, and after the war he returned to England where he was tried and executed in 1791 for an unrelated forgery conviction. Before his execution he reportedly confessed to having caused the deaths of two thousand prisoners through deliberate starvation and other abuses. His confession, whatever its reliability, gave posthumous confirmation to accounts that survivors of the New York prison system had been providing for years. He became the most vivid personal symbol of the systematic brutality that defined British prisoner policy in occupied New York.