The farthest I can trace back to is Joachim Lühmann, married to Anna Henners. They had a boy, named Johann Hinrich Lühmann, and possibly several other children. Joachim was born in 1818 and died in 1936. He immigrated to the USA in 1865. Anna was born in 1833 and died in 1919. She immigrated with him. Johann was born in 1855. He died in 1936. He immigrated with his parents. If you have any farther back with Joachim or Anna, I'd appreciate it. Any of their (possible) other children would also be appreciated. I'm willing to help with their descendants births, deaths, etc.