I'd love to learn more about your research on this branch of the family. My husband's great grandfather was John Lusch 1842 who married Katharina (Catherine) Schoeff. He was Michael Lusch 1826's younger brother. I have traced him back to Legelshurst Baden Germany.
Do you have information about Michael Lusch 1826 mother's maiden name? The old German birth records indicate her name was Katharine Krieg. But other trees indicate Katharina Wirth. I'm trying to reconcile the difference. I have the German records attached to my tree called LaRose family tree JPL. You might find the records interesting if you haven't seen them already. I have one for Michael Lusch 1826 birth and baptism.
regards, Joan LaRose