Family history search Mazarakis/Coukoulis

Am looking for information on relations who came form Cerigo. Names are Antonio, Peter and Andrew Mazarakis three brothers who arrived in Australia at the beginning of the 1900's or just before. Their father's name is believed to be Neelos. Also looking for information on their sister Anastasia who married I believe George Coukoulis who moved to America and settled in Missouri. Any information would be very appreciated.