Klein, Johann August
Felsing, Otto
Strubberg, Frédéric Armand
Vambery, Hermann
Rößler, Balthasar
Gerstäcker, Friedrich
Clapperton, Hugh
Scoresby, William
Lewis, Meriwether / Clark, William
Oppel, Karl
Tiedemann, Adolf von
Gömmel, Anton / Lüpscher, Franz
Carter, Howard / Mace, A. C.
Carter, Howard
Möllhausen, Balduin
Ruhl, Moritz
Young, Egerton Ryerson
Powell, Wilfred Mansell
Lumholtz, Carl Sophus
Wohlrab, Paul