William Formby Halsall ( 1841 - 1919 ) was a British painter. William Formby Halsall s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1725 USD for Pantoosett in 2004 to 11250 USD for The battle of Hampton Roads between the U.S.S. Monitor and C.S.S. Virginia in 2013 , based on the size and medium of the artwork.