BOSTON — Researchers have uncovered a rare photograph of a young Helen Keller with her teacher Anne Sullivan, nearly 120 years after it was taken on Cape Cod.. The photograph, shot in July 1888 in Brewster, shows an 8-year-old Helen sitting outside in a light-colored dress, holding Sullivan's hand and cradling one of her beloved dolls. Experts on Keller's life believe it could be the earliest photo of the two women together and the only one showing the blind and deaf child with a doll — the first word Sullivan spelled for Keller after they met in 1887 — according...