There were several John Wolfe's in Floyd Co but I did find this one that might be the one you are looking for.
Publisher: New Albany Ledger-Standard Date: 1879 03 22 Title: Marriages Subjects: Wolfe, John Thomas, Lizzie Page: 4 Column: 4
You can send 10c to the New Albany library for a copy of the marriage. There were obits for John Wolfe's also and some other records but without knowing his date of death it is hard to tell if any of them are the right one. You can go to http://hip.nafclibrary.org:81/#focushttp://hip.nafclibrary.org:81/#focus and see all of them and hunt for any one else you need. There is an obit for Matthias there.