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The Wilderness Society -
not stated - Public Domain
Heinrich Friedrich Füger original uploader - Public Domain
unknown - Public Domain
Toglenn - CC BY-SA 3.0
Hugo van Gelderen / Anefo - CC0 1.0
Léopold-Émile Reutlinger - Public Domain
Congress.gov - Public Domain
NN - CC BY-SA 4.0
user at project - CC BY-SA 3.0
Felix Francis - CC BY 2.0
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The Wilderness Society -
Frank, Bernard, 1902-1964
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not stated - Public Domain
Bonner, Geraldine, 1870-1930
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Heinrich Friedrich Füger original uploader - Public Domain
Jacquin, Nikolaus Joseph, Freiherr von, 1727-1817
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Whitgift, John, 1530?-1604
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Olmos, Edward James
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unknown - Public Domain
Passerat, Jean, 1534-1602
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San Martín, José de, 1778-1850
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Smith, George, 1924-1983
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unknown - Public Domain
White, Gilbert, 1720-1793
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unknown - Public Domain
Yard, Robert Sterling, 1861-1945
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Toglenn - CC BY-SA 3.0
Trejo, Danny, 1944-....
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Hugo van Gelderen / Anefo - CC0 1.0
Lopez, Trini
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Salaman, Charles (Charles Kensington), 1814-1901
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Léopold-Émile Reutlinger - Public Domain
Andral, Paule 1879-1956
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Thring, Frank, 1926-1994
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White, John Patrick, 1937-
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Dobson, James C., 1936-....
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Congress.gov - Public Domain
Dibble, Samuel, 1837-1913
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Degouve de Nuncques, William, 1867-1935
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unknown - Public Domain
Rothschild, Lionel Walter Rothschild, Baron, 1868-1937
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Bittová, Iva
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unknown - Public Domain
Stilwell, Silas M. (Silas Moore), 1800-1881
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NN - CC BY-SA 4.0
Santi, Sebastiano 1789-1865
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Peters, John Andrew, 1864-1953
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user at project - CC BY-SA 3.0
Islam, Jamal N.
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Felix Francis - CC BY 2.0
Narayan, Shovana.
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Younghusband, Eileen Louise, Dame, 1902-1981
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Desiderio, da Settignano, 1428-1464
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Hagen, Jean, 1924-1977
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Heye, George G. (George Gustav), 1874-1957