Gerardus Frederik Westerman 1807–1890 Source: Wikimedia Commons About Gerardus Frederik Westerman Dutch director and zoologist (1807–1890) People from the Same Era Carl Magnus Dahlström 1805–1875 businessperson Loviisa Lady Katherine Manners 1809–1848 Günther Gensler 1803–1884 painter Hamburg Léontine de Mibielle 1816–1861 poet Eauze Juan Güell 1800–1872 businessperson, economist, politician Torredembarra Dagobert Oppenheim 1809–1889 entrepreneur Cologne