Frank Babbage (English, 1858–1916)
John Gould (English, 1804-1881)
Joseph Wolf (German, 1820-1899)
Gerrit Willem Dijsselhof (Dutch, 1866 – 1924)
Antoine-Louis Barye (French, 1796-1875)
Thomas Sidney Cooper (English, 1803 - 1902)
Alexander Koester (German, 1864-1932)
John Gould (English, 1804-1881)
Alfred Malherbe (French, 1804 – 1865)
John Gould (English, 1804-1881)
Johannes van Bronckhorst (Dutch, 1648–1727)
Coenraad Jacob Temminck (Dutch, 1778-1858)
Samuel Howitt (English, 1756-1822)
Alexander Francis Lydon (English, 1836-1917)
René-Primevère Lesson (French, 1794 – 1849)
Louis-Isidore Duperrey (French, 1786 – 1865)
Jean Gabriel Prêtre (Swiss, 1768 – 1849)
Sir Andrew Smith (English, 1797-1872)
Wilhelm Kuhnert (German, 1865-1926)
John Gerrard Keulemans (Dutch, 1842-1912)
Johann Friedrich Naumann (German, 1780 – 1857)
Frank Edward Clarke (New Zealander, 1849 – 1899)
John Edwards Holbrook (American, 1796 – 1871)
Saverio Manetti (Italian, 1723 – 1785)