Hello, This is a long shot. I discovered a comment on a photo website that said a Kurt Rau was the great great grandson of John Schwarz, the mayor of Savannah, Georgia, after the Civil War and also sheriff of the county (Chatham). Rau said he was kin through his mother's side of the family. I, too, am a great granddaughter of John Schwarz. If anyone knows of this connection, or could suggest how to get in touch with Kurt, I would appreciate it.