Du Chaillu, Paul Belloni, an African traveller, born in Louisiana; his principal explorations confined to the equatorial region of West Africa, and the result an extension of our knowledge of its geography, ethnology, and zoology, and particularly of the character and habits of the ape tribes, and above all the gorilla; (b. 1837).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Ducat * Du Châtelet, Marquise de