At that time period in Sweden, emigrants usually boarded a "feeder" ship which sailed to Hull or Grimsby in England. There the emigrants boarded a train which took them to an English port such as Hull or Grimsby. At that time they boarded a larger ship to cross the ocean.
There are records of the passengers on the "feeder" ships. I just found one on the Genline service (fee-based) for a person on Rootsweb. However, how can anyone help you without details on who this person was, details about this person, and so forth?