Christian Kellermann 1815–1866 Source: Wikimedia Commons People from the Same Era Ludwig von Pergen 1805–1850 military officer Vienna Charles Baxter 1809–1879 painter London Marie von Thadden-Trieglaff 1821–1846 Płoty André Henri Constant van Hasselt 1806–1874 historian, poet, translator, writer Maastricht James Booth 1806–1878 mathematician Lavagh Darius A. Ogden 1813–1889 diplomat, politician