William Wallace Denslow ( 1856 - 1915 ) was an American painter. William Wallace Denslow s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1600 USD for THE CHICAGO TIMES-HERALD in 2006 to 30720 USD for Illustration from The Wonderful Wizard of Oz. in 2014 , based on the size and medium of the artwork.