Đồng Sĩ Vịnh 1833–1901 Source: Wikimedia Commons People from the Same Era Friedrich Fehrs 1841–1908 mathematician, teacher Sinzig Maria Spezia-Aldighieri 1828–1907 opera singer Villafranca di Verona Rudolph Haack 1833–1909 engineer Wolgast Sarah Lindley Crease 1826–1922 painter, scientific illustrator Acton F.A. Conkling 1830–1895 Hon. New York Giuseppe Gatti 1838–1914 archaeologist, epigrapher, jurist Rome