Thomas Worthington Whittredge ( 1820 - 1910 ) was an American painter. Thomas Worthington Whittredge s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 31070 USD for Valley of the Ocate, 1866 in 2002 to 464000 USD for THE CLAM DIGGERS in 2006 , based on the size and medium of the artwork.