William Willmarth ( - ) is a painter. William Willmarth s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2600 USD for NEW MEXICO AND ARIZONA ROCKIES. 1934. in 2006 to 3072 USD for SUN VALLEY IDAHO / SUMMER HOLIDAY. in 2014 , based on the size and medium of the artwork.