Yes, I did have the wrong parents.Got mislead by the census, and I should know that there can be many mistakes in those.Thanks again for your help.
I found a record of a New York passenger list that might possibly be Jacob and Caroline.
It is very hard to read - It is listed as Jacob Schmuck, estimated b 1829, wife Caroline age 23 and Jacob 4 months.
They sailed from Le Harve, France, from Bavaria, on the Isaac Bell, arrived New York 17 Nov 1853.(which is a few years earlier that you stated, but it might be them.This was listed at Ancestry.com Good luck.