Ferdinand Naas married Bavaria Kahn in 1847. I can find no record of them afterwards. But there is a Naas family in Posey County for two or three generations, including one who married a Flora Kahn and one who married a Carrie Gumberts.
I think Ferdinand may have died early, and his wife Bavaria (Barbara?) remarried, but it is only a supposition. If anyone has any information about the Naas family that might help, I would be very interested.