Hiyas,
After reading the other thread and checking a few things I see that Arthur Walter MUNN (illegitimate son of Emily) married a Violet Bertha May BAKER in 1923 VIC.
Arthurs death
22435/1977 MUNN ARTHUR WALTER (f)WALTER (m) EMILY BYE
Maybe the daughter Violet who was of aboriginal descent was Violet the daughter-in-law?
Kellie