Robertson Kirtland Mygatt ( 1861 - 1919 ) was an American painter. Robertson Kirtland Mygatt s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 351.96 USD for The Setting Sun in 2004 to 3585 USD for Tonalist Sunset in 2006 , based on the size and medium of the artwork.