August Kekulé

German organic chemist

Ferdinand Vandeveer Hayden

American geologist

Pierre Léonce Détroyat (Léonce . . .

French naval officer

Pierre Léonce Détroyat (Léonce Détroyat)

French naval officer

Charles-Alexandre Coëssin de la Fosse

French painter

Pierre Léonce Détroyat

French author

Alexander Makeev

Scientist

Jerusha Bissell