Mary Hartmann 1845–1932 Source: Wikimedia Commons About Mary Hartmann American mathematician People from the Same Era Charles F. Manderson 1837–1911 lawyer, military officer, politician Philadelphia Panagiotis Danglis 1853–1924 military personnel, politician Atalanti Guido Orazio Di Carpegna Falconieri 1840–1919 politician Rome Tulio Larrinaga 1847–1917 civil engineer, politician Trujillo Alto Germán Álvarez Algeciras 1848–1912 painter Jerez de la Frontera Helge Væringsaasen 1836–1917 philanthropist