Fritz W. Hammer 1801–1938 Source: Wikimedia Commons People from the Same Era Julius Auboyneau Palmer 1803–1872 politician Edward Spencer Trevelyan 1805–1854 James Duncan 1806–1881 lithographer, painter Coleraine Maria Patton Chamberlain 1803–1880 missionary Salisbury Township Pavel Alexandrov 1808–1857 military officer Adolf Zeising 1810–1876 mathematician, philosopher, psychologist, writer Ballenstedt