David Martin (after) ( 1736 - 1798 ) was a British painter. David Martin (after) s works have been put up for auction numerous times, with realized prices varying from 2225.99 USD for PORTRAIT OF JOHN BULLER OF TRENANT, CORNWALL in 2006 to 2866.87 USD for Portrait of Mrs Simpson, bust-length, in a white dress; and Portrait of Mr Simpson, bust-length, in a green coat in 2018 , based on the size a