O'kelley ( 1908 - 1997 ) was an American painter. O'kelley s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 300 USD for The Gainesville Tornado in 2005 to 6500 USD for Mattie Lou O'Kelley. Floral Arrangement in 2005 , based on the size and medium of the artwork.