crem on Family Tree Circles

My Great Grandmother was Alvina Maud Summers (B:1885 Inverell NSW Australia) she married George Frederick Wright.
BDM list a lady by the same name as death 1973 family unknown. I was led to believe she passed away with George in a car accident in 1914.Though a lot of what I've been told has been a family myth.
Alvina's parents were John summers and Sarah Jane McIntosh,she had a son Harold George Wright ( my grandfather).
I know Alvina lived in Inverell in 1930. I would like to find more information on her life and death in Sydney.

Any information on George's life and death would be appreciated too.