Workers on Barro Colorado Island, Panama, by Unknown, 1924, Smithsonian Archives - History Div, A group of naturalists at Barro Colorado Island, Panama. L to R: Gordon Stanhope Dodds, James Zetek, Ignacio Molino, Nathan Banks, George C. Wheeler, Graham Bell Fairchild, Frederick Burgess, David Grandison Fairchild, and William Morton Wheeler, shortly after the biological field station opened there. The station is now the Smithsonian Tropical Research Institute..