Gainsborough Dupont (after) ( 1754 - 1797 ) was a British painter. Gainsborough Dupont (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 391.5 USD for Portrait of Abel Chapman Esq., three-quarter length, in a red coat and white cravat in 2005 to 2035.32 USD for Portrait of a gentleman wearing a dark jacket and white stock