On 12 Jan 1786 when Phineas was 27, he married Olive Trowbridge (58816) , daughter of Isaac Trowbridge (11 Mar 1720/1-) & Judith Hale (47930) (ca 1726-Nov 1776), in Sharon, CT. Born on 12 Oct 1759 in Oxford, CT. Olive died in Sharon, CT, on 13 Jun 1820; she was 60.