William Huggins (English, 1820 – 1884)
James Duncan (Canadian, 1806-1881)
Edwin L. Sheppard (American, ?-1904)
Johann Friedrich Naumann (German, 1780 – 1857)
Gustav Prütz (German, 19th Century)
Karl Roux (German, 1826-1894)
Scott Leighton (American, 1847-1898)
Sei Koyanagui (Japanese, 1896-1948)
George Shaw (English, 1751 – 1813)
John James Audubon (American, 1785-1851)
Louis Agassiz (American, 1807 – 1873)
Wilhelm Kuhnert (German, 1865-1926)
Jakob Philipp Hackert (German, 1737–1807)
James Sowerby (English, 1757 – 1822)
John Gould (English, 1804-1881)
Louis Agassiz (American, 1807 – 1873)
Louis Agassiz Fuertes (American, 1874 – 1927)
Otto von Thoren (Austrian, 1823 - 1889)
John Gould (English, 1804-1881)
James Ward (English, 1769-1859)
Daniel Giraud Elliot (American, 1835 – 1915)
George Hudson (New Zealander, 1867 – 1946)
Marcus Elieser Bloch (German, 1723–1799)