Are you saying that the arrival manifest only has Bohemia?
None of your ancestors were naturalized citizen? Any children born to this couple in America? What about the maiden name of the female ancestor? Have you taken a look at my reply from a year back? Famly went to family in the beginning of their new life. Possible a neighbor on a census was a relative.
FAIMAN in CZ's phone book:http://seznam.1188.cz/s?q=faiman&x=35&y=20
FAJMAN in CZ's http://seznam.1188.cz/s?q=fajman&x=46&y=17