A roll call of notable people who have died in 2020:
Mary Higgins Clark
Anne Cox Chambers
Barbara “B.” Smith
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Following Stratton's death, Lou Conter and Ken Potts remain the last living members of the Arizona's crew.
Katherine Johnson, a mathematician who calculated rocket trajectories and earth orbits for NASA's early space missions and was later portrayed in the 2016 hit film "Hidden Figures," about pioneering black female aerospace workers, has died. She was 101.