Lithuanian Surnames Wesockes (Visockas Visauches)

My great grandparents came from Lithuania. George (Jurgis) Wesockes (with many variations) b abt 1890 in possibly Milius Kaumas, Misztimej or Kuluosy. He married in abt 1913 Elizabeth (Elzbieta) Barkauskas (Barkauskaite). She was from Obalniki Kowno. They came here for good in 1914 to Athol, Mass. I am trying to find their marriage record & birth recs but have kinda hit a wall & am not sure where to go.