John Thomas Barber Beaumont ( 1774 - 1841 ) was a British painter. John Thomas Barber Beaumont s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 163.22 USD for A Gentleman, wearing blue coat and white cravat in 2004 to 1499.51 USD for Portrait of Maria Beaumont, the artist's daughter, three-quarter-length, seated in a blue dress