Eliza Ross Muckross hotel died January 1885

Hi, my wife's great great grandmother died in Muckross, Killarney in January 1885. For some reason, she is not in the grave with her husband, who died in 1874 (he is in Killegy graveyard by the Herbert memorial). They were originally from Aberdeen, so I do not think she would have been taken back there. They were both Church of Ireland. I have an extract from irishgenealogy.ie which has a book number, page, entry number and record identifier. Would I be able to order this online, and would it give details of where she is buried? Would the record still be held in a church somewhere? Many thanks, John