Peura family history

My name is John Peters - I was raised in Minnesota near Duluth.My great-grand father was Henry Peura (changed the last name to Peters when he came here).He was from Karstula, Finland.I have been there once and met several relatives.There were a number of Peura's from Karstula that came to the U.S..If you have any relatives originating from Karstula, please let me know.