Henry Seebohm (English, 1832 – 1895)
John Gould (English, 1804-1881)
Carl Reichert (Austrian, 1836-1918)
Joseph Wolf (German, 1820-1899)
Saverio Manetti (Italian, 1723 – 1785)
A. Sicco Hempenius (Dutch, 19th/20th Century)
John Gould (English, 1804-1881)
Alfred Frédol (French, 1804-1863)
Samuel Howitt (English, 1756-1822)
Charles Collins (Irish, 1680-1744)
Louis Agassiz (American, 1807 – 1873)
Saverio Manetti (Italian, 1723 – 1785)
Giovanni Segantini (Italian, 1858-1899)
Allen & Ginter (American, 19th/20th Century)
Anselmus Boëtius de Boodt (Flemish, 1550 - 1632)
Anders Askevold (Norwegian, 1834 - 1900)
John Edwards Holbrook (American, 1796 – 1871)
Otto Staudinger (German, 1830 – 1900)
Christian Anton Goering (German, 1836-1905)
John James Audubon (American, 1785-1851)
Louis Agassiz Fuertes (American, 1874 – 1927)
John Frederick Herring Snr. (English, 1795 – 1865)
George Hudson (New Zealander, 1867 – 1946)
Jean Gabriel Prêtre (Swiss, 1768 – 1849)