Heinersdorff, Carl
Johnston, Harry Hamilton
Stanley, Henry Morton
Savoyen, Ludwig Amadeus von
Buchta, Richard
Francois, Curt Karl Bruno von
Farini, Guillermo Antonio
Thomson, Joseph
Volz, Berthold August Emil
Jephson, Arthur Jermy Mounteney / Stanley, Henry Morton
Cecchi, Antonio
Schweinfurth, Georg August
Wissmann, Hermann von