My great-great grandfather, Alexander Fischer, emigrated from Hokenheim Baden, but I don't have a date.
He was married in Freeport, Illinois in 1854. His first six children were born in Freeport, Ridott, and Silver Creek. I think they are all in Stephenson County.
I have names, dates, and locations for Alexander's family and descendants, but know nothing about his generation of the family. Descendants were born, married, and died in Illinois, Minnesota, and Iowa. I can get some of that information to you if you're interested (considering there isn't a direct connection you may not care for it).
Unfortunately the names don't match, but it could be that several siblings were traveling together.
While poking around at the library last night I found that an Alexander Fischer arrived from an unknown village in Baden Germany on the "Golconda." The ship sailed from Havre to New York City, landing on June 23, 1854 (Ref: Germans to America, Vol. 7, p. 313). The name, age, and occupation (farmer) match my great-great grandfather, but the date is inconsistent with the marriage date in our family history. It's a possible match.
Do you have access to a library with a decent genealogical collection? Ours is inconvenient, but has a surprising amount of information. Sadly, most of it is for Tennessee and North Carolina.