Johnson, Joshua (fl. 1795–1824), painter, was probably born in the West Indies. It is now generally believed by scholars of American art and history that Johnson was black and may have come to this country as a young man, probably as a slave. Johnson might be identified as the “negro boy” mentioned in the 1777 will of Captain Robert Polk of Maryland. This boy is thought to have been purchased by Polk’s brother-in-law, the noted artist ...