I was at the Mt. Pleasant Cemetery Archives the other day if you had only posted a week ago I could have checked for you to see where Harry is buried, what you can do is contact Sue Henderson she is the archive lady at Mt. Pleasant Cemetery Archives she can confirm where he is buried and provide you with his date of death if you want a more detail search she will charge for that but if you have a date of death we can always find a obit that will provide a lot more info. She can also confirm who is buried with Harry.
Her e-mail is firstname.lastname@example.org
I hope this helps, if you get a date of death let me know and I'll check for a obit for you.