TrapperJohn said:
I am in possession of a silver cross in the name of Sgt F.H.Pepper.
A possible clue perhaps?
PEPPER, FREDERICK HUBERT
Rank:
Sergeant
Service No:401866
Date of Death:10/04/1917
Age:30
Regiment/Service:Canadian Infantry 2nd Bn.
Eastern Ontario Regiment
Memorial:VIMY MEMORIAL
Son of W. G. and Annie B. Pepper, of 321, Mornington Avenue, London, Ontario.
http://www.cwgc.org/find-war-dead/casualty/1572972/PEPPER,%20FREDERICK%20HUBERT
Photo:
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GSmpid=49001543&GRid=56682360&
Son of William George and Annie Bridget Armstrong
1887 - 1917
http://www.findagrave.com/cgi-bin/fg.cgi?page=mr&MRid=49001543
"Grand uncle of wife."
Canadian Virtual War Memorial
http://www.veterans.gc.ca/eng/remembrance/memorials/canadian-virtual-war-memorial/detail/1572972
etc...
If you search his parents, William George Pepper and Annie Bridget Armstrong Pepper on Ancestry.ca you may get some results on surviving relatives.
Your profile says you are RCMP, so good luck in your search!