looking for Irene

My Grandmother, Irene Gregi lived in the village of Logothetianka. Her husband left for America, maybe in the 1910's. They had two daughters, Evangelia and Christina. Christina is presently living in Athens, in Nea Kypseli. Evangelia, born in Logothetianka, in 1917, emigrated to Australia in 1947 and married John Combis (Combes)born in Catsulianika, in 1904. They married in Sydney, Australia in 1948. My father died in 1963. He had three other brothers, Anastasios, George and Helias(Leo). I am the grandaughter of Irene Gregi and my brother is Nicholas. I was named after my Grandmother. If anyone has information, I would greatly appreciate hearing from you.