Louis Pope Gratacap 1850–1917 Source: Wikimedia Commons About Louis Pope Gratacap American geologist and author (1851-1917) People from the Same Era Giuseppe Savini 1848–1904 linguist Teramo István Gyöngyössy 1849–1914 head teacher, pedagogical writer Ineu Zoltán Török 1852–1919 politician Podrečany Rudolf Wackernagel 1855–1925 archivist, medievalist, non-fiction writer, regional historian, university teacher Basel Morikata Oki 1841–1912 politician Wilhelm Feussner 1843–1928 physicist, university teacher Hanau