William Stewart Watson ( 1800 - 1870 ) was a British painter. William Stewart Watson s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 259.53 USD for THE MEETING OF DR JOHNSON AND FLORA MACDONALD in 2006 to 1377.13 USD for Buttari driving Roman Oxen in 2009 , based on the size and medium of the artwork.