Isaac Doty (1764-1824) married Elizabeth Williams (1760-1820) in 1782. Isaac was the executor of the estate of Thomas Williams, Elizabeth's father, who was a New York City merchant. He was also a proprietor of Doty and Seaman Company, a hardware company, which was established between 1797 and 1801, and Doty, Willets, and Company, a brewery, which was established in 1806. Richard Doty (1783-1852), the son of Isaac, lived in New York City and Brooklyn. He worked with Doty, Willets, and Company and later became Ferry master for the Union Ferry Company. Elizabeth Doty (1810-1862), the daughter of Richard, married Henry D. Young (1841-1884), who was a Brooklyn grocer. Their son, Charles T. Young, was a Brooklyn businessman.
From the guide to the Doty and Young family papers, Bulk, 1840-1880, 1765-1910, (Brooklyn Historical Society)
