Earl probably trained his son , painter Ralph Eleaser Whiteside Earl .
Was an influence on painter 's 's 's nephew Augustus Earle who is reputed to have been the first European artist to have visited all five continents .
Earl probably trained his son , painter Ralph Eleaser Whiteside Earl , and was an influence on his nephew Augustus Earle who is reputed to have been the first European artist to have visited all five continents .