Isaac, son of Samuel (2) Wilbur, was born August 24. 1712, died September, 1793, He married. March 10, 1735, Mary, daughter of John and Mary Brownell. Children: John, born October 2, 1738; Mary, May 30, 1740; Samuel, September 28, 1747; Deborah, February 24, 1749; Elizabeth, July 27, 1751; Susannah, May 29, 1754; Brownell, December 15, 1755, mentioned elsewhere; Hannah, July 24, 1759.