John Williamson ( 1826 - 1885 ) was an American painter. John Williamson s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 8365 USD for Sycamore, Catskill Clove, below Haines Falls in 2002 to 81600 USD for Summer Day on Lake George in 2008 , based on the size and medium of the artwork.