"Here's a fairly well balanced story from National Geographic that covers the "reverse immigration" to Liberia. The article also includes a "picture" of Joseph J. Roberts (Liberia's first president) done by another prominent Liberian, daguerrotypist Augustus Washington.
Earl Burrowes"
http://news.nationalgeographic.com/news/2003/07/0721_030721_liberia.html#ma
in