Hi Victoria,
I'm not sure if my previous message posted. Around 10 years ago a local Vourvourian historian put together a book detailing the lineage of several Vourvourian families. The Vlahos family can be traced back to 1810.
Your grandmother and all her relatives are listed. Let me know if you would like a copy.
Yours sincerely,
Nick Samaras (
samaras@bigpond.net.au)