George Lehman ( 1803 - ) is a painter. George Lehman s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 230 USD for The Great Elm of Shackamaxon Now Kensington in 2004 to 1000 USD for The Great Tree of Shakamaxon (Now Kensington) in 2007 , based on the size and medium of the artwork.