Mary Deveney born Ballenderry, Galway (spelling as per her death certificate) in 1864.
Migrated to Australia with brother John Deveney and mother Mary Deveney (died 1913 aged 92 years. Father - John Conwell and mother - Mary)
Mary married William Brooks and spent the rest of her life on their farm at Peak Crossing near Ipswich, Queensland.
Could your Brigit Deveney be a sister of Mary Brooks (nee Deveney) or Mary Deveney (nee Conwell)?