Hi--Have you checked out the Harrison and Mercer Cos. web sites? You can use the search engine on each to locate any mention of the name you are searching for. I remember seeing the name (spelled Rupe) in several of the cemetery surveys. They might give you a clue and also there may be other mentions of the name (and spelling) on other pages of the site.
Also, I suggest you send emails to the mailing lists and/or the query page for each county. To post to the mailing list, one must be subscribed to it. To post to the query page, go to that page and follow directions there. Someone who has information may see your posts there who do not see the board query.