My aunt Judith Rattenbury, who has died aged 84, was a pioneering computer programmer and data analyst for the social sciences. She was also a cellist, chamber musician and dedicated campaigner, from joining the Aldermaston marches in the 1950s to more recent activism over the climate crisis.
Born in Grantchester, the youngest of three daughters of Monica (nee Miller-Jones) and Robert Rattenbury, the registrary – principal administrative officer – of Cambridge University, Judith went to Cambridgeshire high school.