HI, it is easier to trace your family in Finland than it is here.
The local court house would have records but if you wish to trace them from Finland, try this link for emigration, go to emigrant register, then pick passport or passenger information.http://www.migrationinstitute.fi/index_e.html
The second link is in Finland , parrish information and also
Mailing list is for Finngen on left that you can join.This link
has a search engine for your surnames also.http://www.genealogia.fi/indexe.htm