Painter and teacher born in Kilmarnock, Ayrshire, later settling to work nearby at Girvan, although she travelled widely overseas. Studied at Glasgow School of art, 1982 - 6, winning the Mary armour Award. In 1990 she added the Lily McDougal Award. Was artists in residence at London Hall, ayr, 1986, and in 1989 became a visiting tutor at Glasgow School of Art. Exhibited in many national open shows including RSA, SSWA, Royal Glasgow Institute of the Fine Arts, Mercury Gallery in London and Edinburgh. Had a series of solo exhibitions at Macaulay Gallery, Stenton, and Christopher Hull Gallery from 1988. In both landscape and still life Harrigan was a rich intense colourist as seen in the show she shared with her parents at the Vicarage Cottage Gallery, North shields in 1995. She was elected a member of the RSW.