1950-1959

In both photos Mum and Dad are 3rd and 4th from the right.

This photo was taken of Elsie in 1954 waiting to see the Queen. 
The Queen and the Duke of Edinburgh visited Brisbane in March 1954 which is the most likely date of the photo. 

Photos 1 to 5: At Glen Waverley in June 1957 

Photos 6 and 7: Possibly at Glen Waverley