Rosemary was born in Alice Springs and she grew up in Yuendemu.  Her father, Teddy Egan (Jangala), is an Elder and worked as a police tracker.  Both her father and grandfather are well known artists, and she learnt to paint, from them at an early age when the family was ‘back at the bush” in Ali Curung.  (W of Alice Springs)
Rosemary paints her Dreaming Stories about Water Dreaming, and  including the events of water in the desert, and features of her land.

She has been involved in the Art Centres in her communities at Ali Curing and Yuendemu, and her artworks are popular, and featured in Alice Springs art galleries.  Her artworks have been sold to collections interstate and overseas.