William Sandy was born  in 1944 in Pitjantjorra country around Ernabella in South Australia.
Winkilini, further to the south, is William's country from his father and grandfathers side of the family.
He paints Dingo, Emu, Women and other dreamtime stories for this country in the traditional dot painting style mainly using earth tones.

He painted periodically for Boomerang Art when he visited and stayed for some time in Alice Springs.