William P Welsh ( 1889 - ) is an American painter. William P Welsh s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1600 USD for SPEED TO WINTER PLAYGROUNDS / PULLMAN. in 2008 to 4250 USD for SPEED TO WINTER PLAYGROUNDS IN PULLMAN. in 2015 , based on the size and medium of the artwork.