Joseph-Florentin Bonnel 1826–1902 Source: Wikimedia Commons About Joseph-Florentin Bonnel French mathematician People from the Same Era Arnold Otto Meyer 1825–1913 politician Hamburg John Ashley Kilvert 1833–1920 businessperson, military personnel High Ercall Marcella Lotti della Santa 1831–1901 opera singer Mantua Joseph Anderson 1836–1916 clergyman Easter Ross Mieczysław Kwilecki 1833–1918 banker, politician William Prime Marshall 1816–1906 architect, engineer, naturalist