See: Boutens, P. C., 1870-1943
See: Lima, S. de Magalhães (Sebastião de Magalhães), 1850-1928
See: Tarde, Gabriel de, 1843-1904
See: Barker, J. Ellis, 1870-1948
See: Aveling, Eleanor Marx, 1855-1898
See: Sinclair, Upton, 1878-1968
See: Sinclair, Upton, 1878-1968
See: Bevington, L. S. (Louisa Sarah), 1845-1895
See: Boutens, P. C., 1870-1943
See: Roland Holst-Van der Schalk, Henriette, 1869-1952
See: United States. Congress. House. Committee on Un-American Activities
See: Bradlaugh, Charles, 1833-1891
See: Luxemburg, Rosa, 1871-1919
See: De Leon, Daniel, 1852-1914
See: Hartshorne, Henry, 1823-1897
See: Blatchford, Robert, 1851-1943
See: Lima, S. de Magalhães (Sebastião de Magalhães), 1850-1928
See: Aveling, Eleanor Marx, 1855-1898
See: Aveling, Edward B., 1849-1898
See: Mallock, W. H. (William Hurrell), 1849-1923
See: Domela Nieuwenhuis, Ferdinand, 1846-1919
See: Roland Holst-Van der Schalk, Henriette, 1869-1952
See: Bacon, Francis, 1561-1626
See: Lilienthal, Meta Stern, 1876-1948
See: Bastos, Teixeira, 1857-1902
See: Bacon, Francis, 1561-1626
See: Plekhanov, Georgii Valentinovich, 1856-1918
See: Bakunin, Mikhail Aleksandrovich, 1814-1876
See: Kropotkin, Petr Alekseevich, kniaz, 1842-1921
See: Plekhanov, Georgii Valentinovich, 1856-1918