 In 1945, Biggar moved to London, marrying Eli Montlake in 1948.She died at St Mary Abbot's Hospital, Paddington in London, having suffered a sudden brain haemorrhage,

Biggar's sculptural work was undertaken in a variety of media including plaster, clay and stone.One focus of her work was portraiture, one of her subjects being Emilio Coia, a fellow student at Glasgow School of Art.