William Colgate came to New York City in 1804. He there obtained employment as an apprentice to a soap-boiler. He closely watched the methods practiced by his employer, noting what seemed to him to be mismanagement, and learned useful lessons for his own guidance. At the close of his apprenticeship he was enabled, by correspondence with dealers in other cities, to establish himself in the business with some assurance of success. In 1806 William established a starch, soap and candle business in Manhattan, on Dutch Street. In 1820, he started a starch factory across the Hudson in Jersey City.William followed his goal of prosperity through life, and became one of the most prosperous men in the city of New York.