
Elizabeth Blackwell (Scottish, 1707–1758)

Christian Gottlieb Ludwig (German, 1709 – 1773)

Charles Frederick Millspaugh (American, 1854 – 1923)

Mary Vaux Walcott (American, 1860-1940)

Hans Walty (Swiss, 1868-1948)

Sebastian Kneipp (German, 1821 – 1897)

Edward Step (English, 1855-1931)

Lafayette F. Cargill (American, 20th Century)

Anselmus Boëtius de Boodt (Flemish, 1550 - 1632)

James Marion Shull (American, 1872–1948)

Robert John Thornton (English, 1768-1837)

René de Rabié (French, 1700-1785)

Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)

Mary Vaux Walcott (American, 1860-1940)

Walter Hood Fitch (Scottish, 1817 – 1892)

Louis Antoine Cusin (French, 1824-1901)

Amanda Almira Newton (American, 1860-1943)

William Jackson Hooker (English, 1785 – 1865)

Louis Antoine Cusin (French, 1824-1901)

Mary Vaux Walcott (American, 1860-1940)

Aylmer Bourke Lambert (English, 1761 – 1842)

Louis Antoine Cusin (French, 1824-1901)

Charles Frederick Millspaugh (American, 1854 – 1923)

Sydenham Edwards (English, 1768-1819)

Isabella McHutcheson Sinclair (Scottish, 1842-1900)

Anna Atkins (English, 1799 – 1871)