Baker, Samuel White (1821-1893)(1)
Bates, Henry Walter (1825-1892)(1)
Burton, Richard Francis (1821-1890)(1)
Curzon, George Nathaniel of (1859-1925)(1)
Du Chaillu, Paul B. (1835-)(1)
Duveyrier, Henri (1840-1892)(1)
Freshfield, Douglas William(1)
Gordon, Charles George (1833-1885)(1)
Greely, Adolphus Washington (1844-1935)(1)
Holdich, Thomas Hungerford [vermutlich](1)
Johnston, Henry Hamilton (1858-)(1)