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
SABOURIN
SABURN
SACHRO
SADLER
SAGLE
SAINT_GERMAIN
SAINT_LOUIS
SAINT_ONGE
SAINT_PIERRE
SALEWSKI
SALISBURY
SALLOWS
SALMON
SAMMON
SAMMONS
SAMPLE
SAMPSON/SAMSON
SAMULSKI
SANAGEN
SANDELIN
SANDER
SANDERS
SANDERSON
SANDILAND
SANKEY
SAPWELL
SAUNDERS
SAUVE
SAVAGE
SAWYER
SCAMEHORN
SCANDRETT
SCARR
SCHACTER
SCHADE
SCHAEFER
SCHALLER
SCHARFE
SCHELL
SCHIEDEL
SCHIEDING
SCHILLER
SCHLEIHAUE
SCHLEIHAUF
SCHMIDT
SCHOFIELD
SCHOLES
SCHOOLEY
SCHRAM
SCHRODER
SCHULTHES
SCHULTZ
SCHWARTZ
SCOLLARD
SCOPES
SCOTLAND
SCOTT
SCOURFIELD
SCOVELL
SCRIVENS
SCRIVER
SEABROOK
SEABROOKE
SEAGRAM
SEARLE
SEARSON
SEATON
SEELEY
SEGUIN
SELF
SEMENUIK
SEMPLE
SERGEANT
SERRE
SERVICE
SETTERINGTON
SEYMOUR
SHACKLETON
SHANK
SHANKS
SHANNON
SHAPTER
SHARPE
SHARPLES
SHATTUCK
SHAUGHNESSEY
SHAULE
SHAULL
SHAVER
SHAW
SHEA
SHEDDEN
SHEEHAN
SHEEHY
SHEELEY
SHEFFIELD
SHELDRAKE
SHEPHERD
SHEPPARD
SHERLOCK
SHERMAN
SHERRIFF
SHERWIN
SHIELDS
SHIER
SHILLING
SHINNICK
SHONK
SHORTREED
SHORTT
SHOSENBURG
SHULTZ
SHUTTS
SILTALA
SIM
SIMARD
SIMCOE
SIME
SIMEON
SIMIONI
SIMMONS
SIMMS
SIMONS
SIMPSON
SIMS
SINCLAIR
SINFIELD
SKEAD
SKELTON
SKIDMORE
SKIMMING
SKINNER
SKOBLACK
SKUCE
SKURO
SLACK
SLATTER
SLEEP
SLEETH
SLEGG
SMALL
SMART
SMELLIE
SMITH
SMITHERAM
SMITHERS
SMITHSON
SMRKE
SMYTHE
SNELGROVE
SNETSINGER
SCHNIEDER/SNIDER/SNYDER
SOBISKI
SOHOSKI
SOMERS
SOMERVILL
SOMERVILLE
SOMMERS
SOMMERVILLE
SOPER
SOREL
SORENSON
SOUCIE
SOULE
SOULIERE
SOUTAR
SOUTHBY
SPARLING
SPEARMAN
SPEARN
SPEARS
SPECK
SPEEDY
SPEERIN
SPELLER
SPENCE
SPENCER
SPENSLEY
SPIEGELBERG
SPIERAN
SPIERS
SPIRES
SPOONER
SPOTTON
SPRENGER
SPRIGGS
SPRINSTELE
SPROULE
SPRY
SPYER
STACK
STAHLS
STALKER
STANLEY
STAPLE
STAPLES
STAPLETON
STARKE
STEADMAN
STECHYSHYN
STEEDS
STEEL
STEELE
STEEPE
STEEPER
STEEVES
STENNER
STEPHANIUK
STEPHEN
STEPHENS
STEPHENSON
STERLING
STEVENS
STEVENSON
STEWARD/STEWART/STUART
STICKNEY
STIENSTRA
STILES
STILLIN
STILLWELL
STINSON
STINTSON
STIRLING
STITT
STOCK
STOCKING
STODDART
STOKES
STONE
STONEHOUSE
STONG
STRAIN
STRANO
STREICH
STRIDE
STRIEMER
STROM
STRONACH
STRONG
STRUTHERS
STUCKEY
STURGEON
STYLES
SUGDEN
SULLIVAN
SUMMERFIELD
SUMMERHILL
SUNDERLAND
SUNDSTROM
SUNSTRUM
SUOTAILA
SUTHERAN
SUTHERLAND
SUTTON
SWAIN
SWAINSON
SWAN
SWANSON
SWANTON
SWARTRIDGE
SWATRIDGE
SWEENY
SWEET
SWIFT
SWITZER
SYER
SYKES
SYKO
SYLVAH
SZMINIELSKI