Samuel Hamilton Walker 1817–1847 Source: Wikimedia Commons About Samuel Hamilton Walker Texas ranger and military officer (1817-1847) People from the Same Era Sven Ludvig Lovén 1809–1895 biologist, malacologist, marine biologist, physiologist, scientific collector, university teacher, zoologist Maria Magdalena parish Samuel F. Hersey 1812–1875 politician Sumner Jean Louis Armand de Quatrefages de Bréau 1810–1892 anatomist, anthropologist, biologist, naturalist, physician, university teacher, writer, zoologist Valleraugue Agustín Morales 1808–1872 politician La Paz Benjamin Jaurès 1823–1889 diplomat, military personnel, politician Paris Adaliza Cutter Phelps 1823–1852 writer