An archaeologically‐derived example of congenital absence of the ulna and humeroradial synostosis in a prehistoric North American adult female from Moundville, Alabama is presented. That a physically deformed individual could survive to adulthood attests to her ability to physically adjust to the handicap, as well as society's acceptance, support, or at the very least its indulgence, of persons with potentially crippling deformities. © 1998 John Wiley & Sons, Ltd.