Daniel Giraud Elliot (American, 1835 – 1915)
Constant Troyon (French, 1810-1865)
Lorenz Oken (German, 1779 – 1851)
Théodore Géricault (French, 1791-1824)
Saverio Manetti (Italian, 1723 – 1785)
Anselmus Boëtius de Boodt (Flemish, 1550 - 1632)
Peter Rindisbacher (American, 1806–1834)
Anselmus Boëtius de Boodt (Flemish, 1550 - 1632)
Saverio Manetti (Italian, 1723 – 1785)
Carl Reichert (Austrian, 1836-1918)
Robert Hills (English, 1769 – 1844)
John Gould (English, 1804-1881)
Circle of Aert Schouman (Dutch, 1710-1792)
Johann Friedrich Naumann (German, 1780 – 1857)
Louis Agassiz (American, 1807 – 1873)
Adolph Tidemand (Norwegian, 1814-1876)
Henry Seebohm (English, 1832 – 1895)