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
PADDISON
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PAGETT
PAIN
PALMER
PANTER
PAPINEAU
PAQUETTE
PAQUIN
PARCELLS
PARENT
PARIS
PARISIEN
PARK
PARKER
PARKINSON
PARLIAMENT
PARMETER
PARNELL
PARRETT
PARTRIDGE
PASCOE
PASQUANTONIO
PATERSON
PATTE
PATTEN
PATTERSON
PATTON
PAUDASH
PAUL
PAULSON
PAUPST
PAVLI
PAWIS
PAWSON
PAYIE
PAYNE
PEACE
PEACHEY
PEACOCK
PEARCE
PEASE
PECK
PEDDEN
PEDRO
PEEL
PEELER
PEEVER
PEGG
PEIRCEY
PELLAND
PELLETIER
PELLOW
PELOQUIN
PEMBERTON
PENFOLD
PENNELL
PENSON
PERDUE
PEREDERKA
PERKINS
PERLEY
PERRAULT
PERRY
PERRYMAN
PETERS
PETERSON
PETHICK
PETRYNA
PETTA
PETTIGREW
PETWANAKWAT
PEVERLY
PHILIPE
PHILIPS
PHILP
PHILPOTT
PHIPPEN
PIAKOSKI
PIASKOSKI
PICKARD
PIDGEON
PIERCE
PIERCY
PIEREY
PIERINI
PIGEAU
PIGEON
PILLETTE
PILLING
PILON
PINE
PIPE
PITCHER
PITTMAN
PLATT
PLAUNT
PLAVETICH
PLIMPTON
PLOUFFE
PLOWRIGHT
PLUMPTON
PLUNKETT
POCOCK
PODANN
POE
POGUE
POIKKIMAKI
POIRIER
POITRAS
POKO
POLACK
POLLARD
POLLOCK
POMERELLE
POMMERELLE
PONIEDZIELSKI
POPE
PORRITT
PORTER
POSOCCO
POST
POSTLETHWAITE
POSTLEWAITE
POSTLEWATE
POTTER
POTTS
POTVIN
POUTINEN
PRATT
PREECE
PRESSE
PREST
PRETE
PRETTY
PRIAMO
PRICE
PRIDDAY
PRIDDIN
PRIDHAM
PRIEUR
PRIMEAU
PRIMROSE
PRINGLEMEIR
PRIOR
PROKULIVICH
PROSPER
PROULX
PRUNER
PUFFER
PULCINE
PULKKANEN
PURCELL
PURDIE
PURDY
PURNFORD
PURVIS
PUTINSKI