Obituaries

Jane Fawcett, British Decoder Who Helped Doom the Bismarck, Dies at 95 By BRUCE WEBER As an eagle-eyed staffer at Bletchley Park, home to Britain's wartime code-breakers, Ms. Fawcett identified a message that led to the sinking of the fearsome German warship. Ronald C. Davidson, Pioneer of Fusion Power, Dies at 74 By KENNETH CHANG During Dr. Davidson's tenure, the Princeton Plasma Physics Laboratory made major advances toward harnessing fusion, which powers the sun. For more obituaries, go to NYTimes.com/Obituaries »