Leslie Stephen,
Dictionary of National Biography…
(1893)
“ Mason constantly suffered from pains in the head, and was frequently so sensitive to noise that he retired to an empty house, where even the sound of his own footsteps and his low voice when he prayed caused him pain. He was liable to vivid and terrifying dreams, and subject to visual hallucination. The parish register of Water Stratford records the baptisms of four sons and one daughter of 'John Mason and Mary his wife ' between 1677 and 1684. John (born 1677) became a dissenting minister at Daventry, Northamptonshire, at Dunmow, Essex, and at Spaldwick, Huntingdonshire, successively. ”
