Searching for my Family: Kasimatis, Eleni, Emmanouil and Panagiotis

Hello, seeking information on my Great Uncles and Great Aunt. May name is Ray and I am a Grandson of Michael Kasimatis who lived here in Australia. 

I am wondering how Great Aunt Eleni is. She doesn't speak English. We would like to get in touch with her daughter Nepheli and her child Dionyssia.

Eleni met us in Australia in 2000 and made friends with my Aunt Elaine (who is Australian) as they were close in age. They shared photos and enjoyed each other's company. Aunt Elaine passed away a few years ago.

My Grandfather's brother,  Emmanouil was living in Potamos in 1999. His other brother was Panagiotis and was living in Kithera in 1999.

The family may  know  that Manuel (son of Manuel)  passed away a few years ago. 

So many years have passed and it was very hard when you don't speak each other's language.

One day I hope to come to Greece and see where my Grandfather came from. Maybe I look like him, I don't know. I know he was a chef and people say I am a great cook so maybe I am just a little bit like him.