He immediately became a prominent man in the city and province, and served at various times in a number of important offices, among them being those of surveyor-general of His Majesty's customs for the eastern district of North America, judge of the Court of Admiralty for the provinces of New York, New Jersey, and Connecticut, member of the governor's council, mayor of New York City, judge of the Court of Common Pleas of Westchester County, colonel of the Westchester County militia, and mayor of the borough Town of Westchester. It was from his connection witli tin military that he obtained his title of " Colonel," by which he was always known. He was mayor ( AI.KIi IIKATHCOTK of New York at the same time that his brother Gilbert was Lord Mayor of London. lie was firmly attached to the Church of England, and probably did more than any other man of his times to promote its dominance in New York, being one of the founders of the parish of Trinity Church in New York City, and the leading person in establishing the parishes of Westchester, Eastchester, and Bye in Westchester County. As lord of Scarsdale Manor he caused that manor to be constituted one of the precincts of the parish of Bye, of which he was" chosen warden and vestryman. He is described by a contemporary writer as " a gentleman of rare qualities, excellent temper, and virtuous life and conversation." At an early period of his residence in New York, Heathcote began to take a decided interest in the advantages offered by this county,