States: Missouri: Franklin
Yes, supposedly H.T. is buried there as well. I'm sure many stones are buried, but no doubt his would be next to Martha's.
Jenny Park Weirich is buried in St. Paul's cemetery.
I have other ancestors that are likely buried in Valentine-Miller, among them Jesse and Winnie Ann Dent Park, and possibly Samuel Dent. However, they were earlier and are probably marked with only a stone. But just in case you happen across something to point to them, please let me know.