Many Ontario cenotaphs used initials instead of given names. An excellent site with full names and details is the Commonwealth War Graves Commission
contact John Allan if you are willing to transcribe a cenotaph or other war memorial for OGSPI
MCWILLIAMS
McWILLIAMS w@ca.on.peterborough_county.peterborough 1939-1945
McWILLIAMS
C.
P.
McWILLIAMS
J.
S.
"In memory of the chivalry of our men and women who fought and died
defending humanity against agression" "Their name liveth for evermore"
Peterborough City Hall Book of Remembrance and cenotaph and Legion Branch 52 list
M... Names Mc... Names McW... Names Welcome Home
McWILLIAMS w@ca.on.peterborough_county.peterborough.saint_john_anglican 1939-1945 memorial
wall tablet "to the Glory of God and in honoured memory
of the following members who gave their lives in the Great Wars: "
McWILLIAMS
Clare
M... Names Mc... Names McW... Names Welcome Home
McWILLIAMS w@ca.on.stormont.cornwall 1939-1943 cenotaph
"Erected by the citizens of Cornwall City and Township in sacred memory of
those who gave their lives in the Great War for liberty and justice 1939-1945"
McWILLIAMS
John
A.
M... Names Mc... Names McW... Names Welcome Home
MCWILLIAMS - All Categories in OGSPI