A graduate of Yale University (1723), Nathaniel was admitted to the Congregational Church of Fairfield, Connecticut on March 28, 1725, and by 1727 was ordained by the Presbytery of Philadelphia. His field of labor was in eastern New Jersey, and he was the minister of the Presbyterian Church in Westfield. He was licensed on Jan. 10, 1750 in Essex County, New Jersey to marry Mrs. Elizabeth Marsh. He became estranged from his congregation and his second wife, even going so far as to refer to Elizabeth as 'my disobedient and absconded wife' in his will dated July 11, 1760.
New Jersey Colonial Documents, Calendar of Wills 1761-1770, p. 207:
1760, July 11. Hubbell, Nathaniel, of Lebanon, Hunterdon Co.; will of. Wife, Elizabeth Hubbell, the interest of the money that was put into the hands of Capt. Daniel Potter and Stephen Crane. Sons, Abijah, Ezekiel and Nathaniel, each 5 shillings. To my children, Lois, Asa, Esther, Mary and Susanna, rest of personal and real. Executors- son, Asa,, and my friend, Philip Kearny. Witnesses- Joseph Willis, David Scudder, Andrew Bloomfield. Proved May 28, 1761.
1761, May 28. Renunciation by Philip Kearney. Liber H, p. 78 (findagrave.com)