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
PAILLE
PAQUETTE
PARENT
PARKS
PATRICK
PATTERSON
PAYTON
PEARSON
PELLETIER
PENNELL
PENNEY
PERREAULT
PERRY
PETERS
PHILIPS
PICARD
PICHE
PILOTE
PLOUFFE
PLUMB
POIRIER
POLNUK
POOLE
POTTER
POUPART
POWER
PRESLEY
PRIDHAM
PRIEUR
PROULX
PROVOST
PRUDHOMME