Wishart worked in the post office, but painted as a hobby. She was eventually persuaded to train at
Gray's School of Art in
Aberdeen, where she shared a flat with fellow Orcadian, jewellery designer
Ola Gorie. From 1969 to 1987 she taught painting and drawing at Gray's. Her drawings illustrated George Mackay Brown's
An Orkney Tapestry, published in 1969. In 2005, Wishart was made a full member of the
Royal Scottish Academy. In 1992, 2007 and 2011, the
Pier Art Centre in Orkney held shows of her works. Later works incorporate mixed media techniques. Artists' patron
Margaret Gardiner was a friend. == Personal life and legacy ==