Gerhard Rohlfs; F. Gerard Rohlfs; Friedrich Gerhard Rohlfs; G. Rohlfs
April 14, 1831 – June 02, 1896
explorer, geographer, travel writer, botanist, military volunteer, French foreign legionnaire, military physician, intelligence agent
German geographer, explorer, author and adventurer (1831–1896)
http://www.wikidata.org/entity/Q63209
https://en.wikipedia.org/wiki/Friedrich_Gerhard_Rohlfs [View]
Bremen