Frederic A. Lucas 
US fossil bird specialist
Lucas F. A., 1902, Animals before man in North America. New York: Appleton.
Lucas F. A., 1902, The greatest flying creature, the great pterodactyl Ornithostoma. A. Rep. Smithsonian Institution (1901) pp. 654–659 (Scient. Am. Suppl. 45, 22645–22646.)
Lucas F. A., 1916, The beginnings of flight. Am. Mus. J.16, 5–11.