Ambrose Patterson ( 1877 - 1967 ) was an American painter. Ambrose Patterson s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 455.94 USD for luxembourg gardens, paris in 2005 to 9744.46 USD for Les Roses Trémières (Hollyhocks) in 2007 , based on the size and medium of the artwork.