I am looking for any information on the Dufer, Dufur, Duffer or Duffur surname. Given names are Calvin, Charles, Earl, Harrison, Perry and Teresa. I would appreciate any information on this family. The family lived mainly in Lewistown, PA. I am certain I have not included all their names. Calvin and his wife Catherine are buried at St. Mark's Episcopal Cemetery located in Lewistown (born early 1800's and died in 1870's).