Hi Joy . Not sure how Alex Fraser system works . If you Google --- St Andrews United Church Cemetery Glengarry Ontario --- , you should find a site created by Selwyn Wesley MacDiarmid in 2002 , his email then was SELWYNMAC@TELUS.NET
.There is an index of names and pictures of the Gravestones . There are usually many names on each stone and they are numbered , but I do not perceive a pattern to these numbers . The Grant family you are interested are mainly buried in the south west section of this graveyard .