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A. G. Spalding - Public Domain
Warren (Pennsylvania) Library Association. - Public Domain
The “Graphic” Office - Public Domain
Fratelli Alinari - Public Domain
E.lejet - CC BY-SA 3.0
original uploader - Public Domain
Bokalex - CC BY-SA 4.0
Cuyler Reynolds - Public Domain
Glenn Strong - CC BY-SA 2.0
unknown, upload by Parpan05 - Public Domain
user at project - CC BY-SA 3.0
Per Krafft the Younger - Public Domain
Knight Foundation - CC BY-SA 2.0
original uploader - CC BY-SA 2.5
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Rosendahl, Charles E. (Charles Emery), 1892-1977
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A. G. Spalding - Public Domain
Rogers, John J.W. (John James William), 1930-
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Boldt, George, 1851-1916
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Tobey, Rebecca, 1948-....
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Warren (Pennsylvania) Library Association. - Public Domain
Hazeltine, Abner, 1793-1879
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Cogswell, William, 1838-1895
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Parrish, Maxfield, 1870-1966
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Nock, Albert Jay, 1872 or 1873-1945
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Rokeby, Richard Robinson, Baron, 1709-1794
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The “Graphic” Office - Public Domain
Yorke, Oswald, 1866-1943
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Olson, Anna, 1968-
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Fratelli Alinari - Public Domain
Morphett, John, Sir, 1809-1892
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E.lejet - CC BY-SA 3.0
Lejet, Edith
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Alexander, William, 1726-1783
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Esch, John J. (John Jacob), 1861-1941
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original uploader - Public Domain
Grahn, Lucile, 1819-1907
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Bokalex - CC BY-SA 4.0
Gurvitch, Georges, 1894-1965
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Cuyler Reynolds - Public Domain
Townsend, John, 1783-1854
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Karpinskiĭ, A. P. Aleksandr Petrovich, 1846-1936
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Glenn Strong - CC BY-SA 2.0
Stewart, Louis, 1944-
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unknown, upload by Parpan05 - Public Domain
Hegi, Franz, 1774-1850
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March, Francis Andrew, 1825-1911
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user at project - CC BY-SA 3.0
Sellars, Peter
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Steele, Freddie, 1912-1984
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Per Krafft the Younger - Public Domain
Wingård, Carl Fredrik af, 1781-1851
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Einstein, Alfred, 1880-1952
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Knight Foundation - CC BY-SA 2.0
Knight, John Shively, 1894-1981
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Buck, Solon Justus, 1884-1962
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original uploader - CC BY-SA 2.5
Jackson, Steve, 1953-
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Becker, Adolf von 1831-1909