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)
Freshfield, Douglas William(1)
Gordon, Charles George (1833-1885)(1)
Holdich, Thomas Hungerford [vermutlich](1)
Johnston, Henry Hamilton (1858-)(1)
Johnston, Keith (1844-1879)(1)