I thought I would put a timeline together so we can start looking in a timeframe...correct me if this is wrong:
Laura Eva HARVEY ( nee ???) m - ???? HARVEY?? in Victoria?
1) Margaret HARVEY b 1945 Maroopna Victoria
2) Gaye HARVEY b ?? Maroopna "
father died WW2
Moved to Shepparton after WW2
Margaret and Gaye adopted by the PARRY family in Brighton Victoria sometime late 1940's early 1950's
Do you know the first names of the PARRY folk?
Margaret has 2 children.
Do you know if the girls adopted the PARRY name??
Here is a link to the Mooroopna cemetery:http://www.australiancemeteries.com/vic/gtr_shepparton/mooro...
There is a list of names of those from Mooroopna who enlisted for WW2 as well...not sure it helps as we don't know who Laura Eva married..but it could be a start!
Here is an interesting Wikipedia account of Mooroopna:http://en.wikipedia.org/wiki/Mooroopna
Maybe you could check with the local Historical Society there - there are a number of references on the above link
If you can provide any more clues, that would be great