New Jersey Loyalist.
Admitted to New Jersey bar (1767). Practiced law, garnered several lucrative civil service appointments, and amassed extensive lands in New Jersey and New York. Became a prominent Loyalist. With his brother-in-law John Morris, Antill raised the second battalion of the New Jersey Volunteers, a Loyalist regiment (1776). Later commissioned to secure settlements in Nova Scotia for Loyalist officers. Immigrated to Nova Scotia after the Revolutionary War.
Son of Edward Antill of Perth Amboy, New Jersey. Married (1) Margaret Colden, daughter of Alexander Colden (1770); three children; (2) Jane Colden, his first wife’s sister.