Paul Gaffarel (1843-1920) was a French historian who in his 1869 work, Rapports de l’Amérique et de l’Ancien Continent (a), supported an Atlantic location for Atlantis. He believed that the influence of Atlantis could be detected in the Americas, Egypt and the Canaries.
(a) http://books.google.ie/books?id=5lY9AAAAcAAJ&printsec=frontcover&dq=%22Rapports+de+l’Am%C3%A9rique+et+de+l’Ancien+Continent%22&source=bl&ots=rrOC2eJxx3&sig=43qxmh_ehWlMbTbGgv-U7SfPNrI&hl=en&ei=iBWTTem0NNSxhQf7ha2ODw&sa=X&oi=book_result&ct=result&resnum=2&ved=0CBsQ6AEwAQ#v=onepage&q&f=false