Ambrose St John (Callington MP)
Ambrose St John (1760–1822) of Prior Park, Berkshire and The Close, Winchester, Hampshire, was a Member of Parliament for Callington in Cornwall and was Lt-Col Commandant of the Supply Militia of Worcestershire. Origins. He was the eldest son of Very Rev. St Andrew St John (1732–1795), Dean of Worcester Cathedral, the second son of John St John, 11th Baron St John of Bletso. He was educated at Christ Church, Oxford and the Inner Temple. Marriage and children. He married Arabella Hamlyn (d. 1805), only daughter of Sir James Hamlyn, 1st Baronet (1735–1811) (born "James  Hammet") of Clovelly Court in Devon, and of Edwinsford, Carmarthenshire, Wales, a Member of Parliament for Carmarthen 1793–1802 and Sheriff of Devon 1767–8. Her mother was Arabella Williams (died 1797), daughter and eventual heiress of Thomas Williams (died 1792) of Edwinsford, Llandeilo, and of Court Derllys, both in Carmarthenshire. By Arabella he had issue two sons and five daughters, including: Death. He died at Douglas, Isle of Man, on 29 November 1822. His monument survives in Worcester Cathedral.