My husband's name was Carl Friederich MARON, also from Germany. But my great grandmother was Barbara Ehret who lived in Bruchsal and came from Alt-Gruenhofwirthin. She was born in 1830 and died in 1896.
The family had the "Gruner Hof" guest house in Bruchsal.
A book has been published just last month in Germany about that establishment. Name is "Das Paradies in Bruchsal, written by Sonja Zeh. I have a copy. Is your family connected with this. Barbara married Philipp Troestler and I am their great grandchild, son of Maximillian Damien. If we are related, let's share.