Family from Kythera in Sydney area, NSW

Hi, I am looking for the descendants of John Harry Kassimatis (Cassim) (b. abt 1856 d. after 1922) and Theodosia "Dorothy" Panaretos.
They lived in the Ardlethan, NSW area, but their descendants spread all over the Sydney area.
They had:
Stavroula 1887-1972 m. Paul Katsoulis
Photeine 1892-1975 never married
Haralambos John 1894-1974 m1 Evelyn Anne Laura ____ m2 Efrosini "Fofi" Goumas
Michael "Minas" John 1899-1965 m. Winnifred Elizabeth ____
Stamatia 1901-1979 m. Harry James Flaskas
Europa 1904-1932 m. George Castrisos

Surnames of their descendants include: Cassim, Castrisos, Firth, Flaskas, Aroney, Economos, Rose, Katsoulis, and Castrission.

Also another family in the Australia was:
Anastasia "Tasia" Fyropoulos/Feros (1912-2002). She married in 1949 in Sydney to Nicholas Anastasios Panaretto (?-1964) son of Anastasios and Martha Panaretto.

Any information at ALL on any on these families and/or surnames would be great!

Peter Trearchis
Dracut, MA, USA
[email protected]