I'm from Australia originally, but have been working in Malaysia for the last 4 1/2 years.
My father, George Angus Diffey, was the son of Angus Seth, whoes grandfather was John Diffey, from Corfe Castle, County Dorset, England, and migrated to Victoria, Australia in 1849.
My father wrote a book in 1990 on the Diffeys in Australia, and we had a reunion on the 100th anniversary of John Diffeys death. About 1500 people attended over 2 days, and yes they were all Diffeys or related to a Diffey !!
Please feel free to contact me at my e-mail, as I love to keep in touch with other Diffeys.