Walter Rye, Dictionary of National Biography… (1886)
“ Little is known of his personal appearance, but though there is no portrait of him extant, he is said to have so much resembled John Flamsteed that ‘honest Tom Martin’ of Thetford preserved and valued a portrait of the astronomer for no other reason, and a copy of it is prefixed to the octavo edition of Blomefield. It is of a man with a good forehead, fine eyes under rather beetle brows, a prominent nose, and a firm mouth. ”
