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unknown - Public Domain
w:Onslow Ford - Public Domain
Photojunkie - Public Domain
The copyright lied with the Historische Museum Frankfurt (Historical Museum of Frankfurt) which kindly released the file under a cc-by-sa during GLAM on Tour Frankfurt 2018. - CC BY-SA 4.0
Boungawa - CC BY-SA 3.0
Thomas Good -
Julienmorvan - Public Domain
Agence Rol - CC BY-SA 4.0
Rachgarb - CC BY-SA 4.0
Office of Governor Brian Schweitzer - Public Domain
Harris & Ewing, photographer - Public Domain
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unknown - Public Domain
Persico, Enrico, 1900-1969
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Ayguals de Izco, Wenceslao, 1801-1873
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St. Albans, Harriot Mellon, Duchess of, 1777?-1837
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unknown - Public Domain
Norman, Henry
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Escherich, Theodor, 1857-1911
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Chamberlin, William Henry, 1897-1969
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w:Onslow Ford - Public Domain
Hamilton, John McLure, 1853-1936
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Photojunkie - Public Domain
Rooney, Art, 1901-1988
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The copyright lied with the Historische Museum Frankfurt (Historical Museum of Frankfurt) which kindly released the file under a cc-by-sa during GLAM on Tour Frankfurt 2018. - CC BY-SA 4.0
Sender, Toni, 1888-1964
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unknown - Public Domain
Armstrong, John, 1813-1856
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unknown - Public Domain
Johnson, Helen Kendrick, 1844-1917
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Aubé, Jean-Paul 1837-1916
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Spencer, John, 1630-1693
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Chambliss, Saxby, 1943-
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Dale, Henry H. (Henry Hallett), 1875-1968
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Boungawa - CC BY-SA 3.0
Takahata, Isao
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Thomas Good -
Rudd, Mark
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Julienmorvan - Public Domain
Fabian, Françoise 1932-
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Agence Rol - CC BY-SA 4.0
Gondra, Manuel, 1871-1927
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Rachgarb - CC BY-SA 4.0
Drexler, Rosalyn
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Bianchi, Giovanni, 1693-1775
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unknown - Public Domain
Victorio, Apache Chief, -1881
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Office of Governor Brian Schweitzer - Public Domain
Schweitzer, Brian, 1955-
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Cannon, Annie Jump, 1863-1941
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Taylor, Montgomery Meigs, 1869-1952
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Paine, Roxy, 1966-
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Harris & Ewing, photographer - Public Domain
Borden, William Cline, 1858-1934
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unknown - Public Domain
Bustamante, Anastasio, 1780-1853
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Seiwert, F. W. (Franz Wilhelm), 1894-1933
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Baxter, John, 1819-1886