looking for a Canadian veteran of WWII (From France)

[J. MONTIER]

I am French and I live in Normandy. Six years ago, at an antics' fair, I found a Canadian steel helmet near the D-Day landing beaches. Inside this helmet there is an ASN (Army Serial Number) which is B21695, but there is no name. After looking for information with the help of the Library and Archives of Canada, I have been answered that the owner of this very helmet is named John Garnet Gillanders and that he served with the Queen's Own Rifles of Canada during WWII. I am sure this man was alive at the end of the war (he is not listed by the Commonwealth War Grave Commission). So, I would like to know more about this man and his life, what he did in 1944 in Normandy.
If the name of John Garnet Gillanders rings a bell to you, if you know or remember this man, I would be very happy and gratefull if you could send me any information about him and his service during The Second World War.


Thanks for your help.