All three of those are listed on the Canadian Maple Leaf Legacy Project with their details, but they do not have the grave site photos posted, however Steve's list say they
are done. I presume that just means they have not been uploaded, probably a back log.
The links to their pages on the MLP site are here:
John David Miller Jared Vining McCutcheon Dermott Joseph Green
I have taken a look to see what I can get on their service records from Ottawa. That is covered here at
Library and Archives Canada - WWII Records. Apparently if they have been deceased for more than 20 years the records are available and only proof of death is required. I would think the CWGC records and your grave site photos would answer that question - yes, it actually says that is acceptable. The only restriction appears to be that they can not make anything after 1918 available
on line (the Canadian 90 year rule). What is the rule in Australia and elsewhere??
There is a link on that page to
Canadian Newspapers and the Second World War that I have not checked myself, perhaps after the race trials (of course in Canada we are watching the Australian Grand Prix) then NASCAR.