William Horace Muir ( 1902 - 1964 ) was a painter. William Horace Muir s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 300 USD for Crater Lake in 2012 to 1400 USD for Full-Scale Studies for a pair of 'Clamdiggers' in 2013 , based on the size and medium of the artwork.