1877–1934
Geologist, writer, company director
1819–1898
Draughtsman, botanist, artist
1822–1887
Explorer, geologist, writer, museum founder
1834–1907
Geologist, explorer, administrator
1836–1905
Soldier, scientist, university professor
1831–1833?–1899
Public servant, military leader, writer
1857–1946
Geologist, director of school of mines, university professor, writer
1867–1949
Geologist, university professor, museum curator
