David Gilmour Blythe ( 1815 - 1865 ) was an American painter. David Gilmour Blythe s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 850 USD for PORTRAITS OF JOHN JAMES COOKE MCDONALD AND MARGARETTA JANE MCDONALD in 2005 to 122400 USD for The Stage Coach in 2006 , based on the size and medium of the artwork.