Valmayi was born at a place called Karukali, east of Docker River. She is a Luritja lady. Her father was a Pintupi man from Karkurintjintja (Lake Hopkins) and her mother was Pitjantjar.
Valmayi grew up in Papunya, and later lived at Haasts Bluff. Valmayi's late husband was a well-known Papunya Tula artist, his name was Eddie Etimintja. Valmayi moved to Docker River with her second husband in her later years and has painted in Kintore with Papunya Tula.