Corrigan, Mairead (moiˈrə kôrˈĭgən) [key], 1944–, Irish social activist, b. Belfast. A volunteer social worker in the Catholic neighborhoods of Belfast, Corrigan saw three of her sister's children killed when a car driven by an Irish Republican Army (IRA) terrorist went out of control after being fired on by British troops. Betty Williams, who also witnessed the incident, joined with Corrigan to form the Peace People Organization, a movement of Catholics and Protestants dedicated to ending sectarian fighting in Northern Ireland. For their work the two women were awarded the 1976 Nobel Peace Prize.
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