By the by both Thomas and Abedi Michael's deaths were registered as BURKE not BOURKE.
Thos died in 1937 in Fitzroy (reg #9278), aged 76, father as Jas and mother Mary OBRIEN.
Michael in 1937 in Terang (reg #18896), aged 63, father as Jno and mother as Mary OBRIEN.
The sister mentioned in notice above was Mary Ann BRENTANE who died in 1946 in 'S Tarra' (reg #11296), aged 83, father as Jno BOURKE and mother as Mary OBRIEN.
Another sister was Agnes Elizabeth JUSTIN who died in 1944 in Terang (reg # 21501), aged 70, father as Jno BOURKE and mother as Mary OBRIAN.
I suspect the eldest sister named was Bridget Louisa DELANY who died in 1944 in Fitzroy (reg #9638), aged 79, father as Jno BOURKE and mother as Mary BRYAN.