I don't think he was born in the U.S. OR Africa.
I agree with your post.
(I also agree with your tag.)
In Indonesia, the neighborhood children said that he came from Papua, New Guinea. Based on appearance, there was an Indonesian doppelganger parading for photos.
Possibly, he could be traced to one of these photographs? Or not.
http://www.nature.org/cs/groups/webcontent/@web/@papuanewguinea/documents/media/prd_026406.jpg
http://www.davehoekstra.com/wp-content/uploads/2016/05/oa_gal-bob-leroy-nguinea505.jpg