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Unknown -
SBSRecords - CC BY-SA 3.0
Billy Rose Theatre Collection - Public Domain
Frederick Slocum - Public Domain
Obra Social Caja Cantabria - CC BY 2.0
Tof1 -
Unknown contemporary author - Public Domain
Photoplay magazine - Public Domain
Edmund Wheeler - Public Domain
Federal government of the United States - Public Domain
R.D. Hume - Public Domain
After John ('HB') Doyle (1797-1868) - CC BY-SA 4.0
Balázs Árpádné Malovecz Ágnes - CC BY-SA 4.0
National Archives and Records Administration, identifier #12170786 (local identifier #64-NA-2352a-c) - Public Domain
Benedykt Jerzy Dorys (1901-1990) -
Leif Ørnelund - CC BY-SA 4.0
unknown - Public Domain
BPL - CC BY 2.0
LSE library -
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Asam, Egid Quirin, 1692-1750
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Unknown -
Doubrovska, Felia, 1896-1981
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Cowen, Joseph, 1831-1900
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Davison, Emily Wilding, 1872-1913
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SBSRecords - CC BY-SA 3.0
Malone, Michelle
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Billy Rose Theatre Collection - Public Domain
Kane, Whitford, 1882-1956
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Frederick Slocum - Public Domain
Upton, Winslow, 1853-1914
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Obra Social Caja Cantabria - CC BY 2.0
Suárez, Gonzalo, 1934-
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Tof1 -
Stephen, Ninian, Sir, 1923-
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Middleton, William G. 1846-1892
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Cobbold, T. Spencer (Thomas Spencer), 1828-1886
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Dillaway, Donald, 1905-
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Unknown contemporary author - Public Domain
Paul IV, Pope, 1476-1559
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Photoplay magazine - Public Domain
Busch, Mae
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Edmund Wheeler - Public Domain
Metcalf, Ralph, 1798-1858
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Federal government of the United States - Public Domain
Powell, Earl A.
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Stockhausen, Julius, 1826-1906
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Holling, C.S.
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R.D. Hume - Public Domain
Hume, R. D. (Robert Deniston), 1845-1908
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After John ('HB') Doyle (1797-1868) - CC BY-SA 4.0
Graham, James, Sir, 1792-1861
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Balázs Árpádné Malovecz Ágnes - CC BY-SA 4.0
Ferencsik, János
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National Archives and Records Administration, identifier #12170786 (local identifier #64-NA-2352a-c) - Public Domain
Posner, Ernst.
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Benedykt Jerzy Dorys (1901-1990) -
Czerny-Stefańska, Halina
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Leif Ørnelund - CC BY-SA 4.0
Broch, Hjalmar, 1882-....
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unknown - Public Domain
Williams, Clara, 1891-1928
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BPL - CC BY 2.0
Jackson, Francis, 1789-1861
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LSE library -
Ginsberg, Morris, 1889-1970
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unknown - Public Domain
Stribling, T. S. (Thomas Sigismund), 1881-1965
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Princeton University
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Łukasiewicz, Ignacy, 1822-1882