Cephas Giovanni Thompson ( 1809 - 1888 ) was an American painter. Cephas Giovanni Thompson s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1880 USD for Portrait of a Woman. in 2004 to 2880 USD for Virgin Mary with Guardian Angels and Saint Innocents in 2016 , based on the size and medium of the artwork.