Hi,
I think the info you are looking for falls within the privacy era.
I found a marriage on QLD BDM for Marie Ivy Jane FORD in 1937 to a Charles Wayatt ROCKLEY.
Marie was born 1914 to Ira FORD and Ivy Olive MURRAY.
Mervyn Murray FORD died 1981 Father Ira John FORD Mother Ivy Olive
It would appear Ira and Ira John FORD may be the same person as Ivy Olive died 1927.
There is a marriage in 1931 for Ira John FORD to Edith BEAVEN.
Was Edith BEAVEN your mothers mother?
Kellie