Sandra is the younger sister of Jeannie Wareenie Ross. They have different mothers but the same father.
Sandra started painting in the 1980s at Papunya through Papunya Tula Artists. She moved to Mount Liebig and still kept painting there. In 2018, Sandra moved to Haasts Bluff and began painting with Ikuntji Artists.
Her paintings are about her country, Watiyawanu – Mount Liebig. The two creeks at Mount Liebig feature in her work.