Interesting well-analysed parallels between Haida, Eyak-Athabaskan and Tlingit have surfaced recently John Enrico 2004 but is not enough to conclude a genetic relationship.
A vocabulary of the language of the Haida Indians of Prince of Wales Archipelago, obtained from a Haida of Cape Kaigahni, Alaska, by James G. Swan, Port Townsend (Wash. Terr.). August 3, 1876