Helping a friend looking for her family. Christian Grahn and Ruseia Butcher were married in Germany/Prussia and had son Wilhelm Grahn b abt 1840 and a daughter Henrietta. Wilhelm and Henrietta both come to USA on ship Berlin and arrived in Baltimore 26 Jun 1871. Grahn families lived in Wisconsin. Is there anyone out there that might be able to help us find more info? Thanks so much for any help.