Polly Ngala (also spelt; Ngal, Kngal, Ngale) was born in 1940 into the Anmatyerre tribe. She was married to Ray Yeramba (deceased) and now lives at Camel Camp on Utopia with her family, and sisters Kathleen Ngala, Maisy Ngala and Angeline Pwerle Ngala.
Like many of the women in Utopia, Polly began her artistic career in batik, before venturing into painting with acrylic paints on canvas. She often assisted her sister Kathleen and also the late Emily Kngwarreye Kame with whom she shared the same country.