James Duncan (Canadian, 1806-1881)
Saverio Manetti (Italian, 1723 – 1785)
Bruno Liljefors (Swedish, 1860–1939)
Carl Schweninger (Austrian, 1854-1903)
Alfred Edmund Brehm (German, 1829-1884)
Geza Vastagh (Hungarian, 1866-1919)
Carl Friedrich Deiker (German, 1836 - 1892)
Louis Agassiz (American, 1807 – 1873)
Melchior d'Hondecoeter (Dutch, 1636-1695)
Mark Catesby (English, 1683 – 1749)
Pierre Jacques Smit (Dutch, 1863-1960)
Frederic Whiting (English, 1874–1962)
Louis Agassiz (American, 1807 – 1873)
Joseph Smit (Dutch, 1836 – 1929)
Johann Friedrich Naumann (German, 1780 – 1857)
Frederick McCoy (Irish, 1817-1899)
Frederick DuCane Godman (English, 1834 – 1919)
Paul-Andre Robert (Swiss, 1901-1977)
Léo-Paul Robert (Swiss, 1851 - 1923)
Emil August Göldi (Swiss, 1859-1917)
Edward Julius Detmold (English, 1883-1957)
John Gould (English, 1804-1881)
John Frederick Herring Jr. (English, 1820-1907)