William W Kennedy ( 1817 - 1871 ) was an American painter. William W Kennedy s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 7000 USD for PAIR OF NEW ENGLAND PORTRAITS: CLARK AND SARAH (GARDNER) SWALLOW in 2004 to 17500 USD for portrait of a rhode island lady in 2015 , based on the size and medium of the artwork.