Born at Polpeor in Lelant Downs, the eldest son of John and Elizabeth (Trewhella) Glasson; christened 14 December 1800. Married Jane Jennings at Lelant in 1828. John was a blacksmith and an innkeeper at St. Ives, and died at Trelyon there in 1870. He was buried at Lelant 8 January 1870. He and Jane had no children.