Agnus Shea's mother Violet Josephine Freeman Bulger was born on Brungle Station around 1900 and became a stockwoman on her traditional lands. Violet Bulger assisted Agnus' grandfather Fred Freeman in rounding up brumbies. Agnus spent time on Brungle Mission as child and had many relatives there.
Throughout her life, Agnus Shea has worked toward bridging a better understanding of Aboriginal culture by non-Indigenous Australians. Shea has delivered traditional welcoming ceremonies at numerous events in Canberra.
In 2001, Shea was the recipient of a Centenary Medal for her contribution to reconciliation and the community. Agnes Shea OAM was the first person to receive the Chief Minister's Award in 2003 and was awarded the Order of Australia Medal in 2004 for her service to the Ngunnuwal people by contributing to the improvement and development of services to the indigenous people of the Australian Capital Territory. Agnus Shea is the sister of Vincent Bulger and the aunty of Sue Bulger