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 Ralph Adams Field b. 1837 politician Charles Waite 1837–1898 military officer Orange County Edward A. Stevens b. 1841 politician Alfred Henry Burton 1834–1914 photographer Leicester Miguel Cruchaga 1840–1887 economist, jurist-consultant, politician, writer Paul Paillette 1844–1920 chansonnier, poet Paris