Per Teodor Cleve 1840–1905 Source: Wikimedia Commons About Per Teodor Cleve Swedish chemist who discovered holmium and thulium (1840-1905) People from the Same Era Alfred Wilhelm Stelzner 1840–1895 geologist, mineralogist, university teacher Dresden Henry J. Boyd b. 1831 politician George Yost Coffin 1850–1896 cartoonist Pottstown Isa I of Bahrain 1848–1932 sovereign Bahrain Lyman R. Critchfield 1831–1917 lawyer, politician Danville Edmund C. Hinde 1830–1909 diarist, historian, miner Urbana