Edith nee McCREADIE ( formerly COOMBS ) was still producing children after her marriage to Albert COLGER and was supposedly
50 years at her death in 1917. So a 1865 birth is doubtful.
Regarding Beatrice KIRBY
As an
alternative to her being the one who was daughter Arthur F KIRBY and Laura MURRAY who is stated to be born in 1931 and marrying in 1941.
I think it possible that the Laura in question was nee MITCHELL and the Arthur in question is Arthur JOSEPH KIRBY .
Their daughter , Beatrice is stated born in 1924. Regrettably I see no reg.
As we know, there were siblings and half-siblings throughout many indigenous families
This sad but interesting biographical article tells that Theresa KIRBY was the youngest surviving child of Laura (nee MITCHELL) and Arthur Joseph KIRBY. She was born in 1934
It mentions her sister
Beatrice. https://childrenaustralia.org.au/journal/article/825Click on Full PDF to read the article
This may be the death of the Laura KIRBY referred to in the PDF. It would fit with the statement that Teresa’s mother died when Teresa was young.
KIRBY LAURA
10813/1940
THOMAS and RACHEL
BALRANALD
This is the death of Arthur Joseph KIRBY. Accident referred to in the PDF.
KIRBY ARTHUR JOSEPH
8378/1938
CHARLES and CLARA
At BALRANALD
An ancestry link to the coroners inquest regarding Arthur
https://www.ancestry.com.au/search/collections/1785/records/47020Teresa, under her married name , is buried at Swan Hill
Swan Hill Memorial Park SH-PRESBYTERIAN3-ROW~1-P134 Teresa Rachel - DONACZY 28-August-1936 05-March-1997 13-March-1997
This is an ancestry link to a tree which offers photos of this family including Beatrice.
It is stated she married Bert MURRAY in 1941.
SORRY
Edit-- adding the forgotten link.
https://www.ancestry.com.au/family-tree/person/tree/175371407/person/292281016876/facts?_phsrc=9365&_phstart=successSourceAnyhow, all worth a look.
At least this Beatrice was old enough to marry, not 10 years old.

Sue