I wish I could help you. I recently visited Greece and found out more about my history. I do know all of my Mother's living relatives; however, my Father's side is harder to figure out, since most of his family are from villages in Pelloponese. During my recent visit, I travelled throughout the villages and found many relatives from his Mother's side (Latsis). When I served in the Army, there was a Christina Vlahos who served in the Intelligence branch....never got to meet her, but heard she was one hell of a leader. You would not happen to be her? It would not surprise me if my Father knows of your grandparents...I'll have to ask him and will update you to any new findings.