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Sebastian Kneipp (German, 1821 – 1897)
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Georg Dionysius Ehret (German, 1708-1770)
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Louis Antoine Cusin (French, 1824-1901)
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Mary Lawrance (English, 1776 - 1831)
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Charles Antoine Lemaire (French, 1800-1871)
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Robert Jacob Gordon (Dutch, 1743 – 1795)
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Sydenham Edwards (English, 1768-1819)
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Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)
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Ernst Benary (German, 1819-1893)
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Johann Wilhelm Weinmann (German, 1683-1741)
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Elizabeth Blackwell (Scottish, 1707–1758)
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Hans Walty (Swiss, 1868-1948)
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Ferdinand Keller (German, 1842 – 1922)
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Carl Hoffmann (German, 1802-1883)
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Charles Antoine Lemaire (French, 1800-1871)
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Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)
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James Marion Shull (American, 1872–1948)
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Mary Vaux Walcott (American, 1860-1940)
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Edward Step (English, 1855-1931)
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Mary Vaux Walcott (American, 1860-1940)
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William Roxburgh (Scottish, 1751 – 1815)
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Johann Wilhelm Weinmann (German, 1683-1741)
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William Jackson Hooker (English, 1785 – 1865)
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William Jackson Hooker (English, 1785 – 1865)
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William Jackson Hooker (English, 1785 – 1865)
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Mary Vaux Walcott (American, 1860-1940)
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William Jackson Hooker (English, 1785 – 1865)
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Hendrik Schwegman (Dutch, 1761–1816)
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Louis Antoine Cusin (French, 1824-1901)