My Great Grandfather, Casper Trautmann (born: 21 Aug. 1828) migrated from Bettenhausen/Meiningen Germany to Wisconsin. He married Margarethe Baumbach (born 26 Jan. 1837) in Meiningen, Germany. Could Casper have been a sibling to your Wilhelmine Trautmann? Where can I find the German's to America passenger list?

I am searching for the names of Casper Trautmann's parents, or anyone who has helpful information or a connection. Thank You!