As an aside, though; I remember, when I first immigrated to the U.S. in 1977(Baltiore, MD), my Parishioners would introduce themselves as 'John Smith, born in Baltimore, I'm part German, Cherokee and French; this is my wife, Mary, she's from California, part Mexican, part Norwegian" (???) {Did I ask?.......}
I hardly ever hear this nowadays, but still vividly remember being stunned into silence the first few times. Our impressions of Americans in those days was laid-back, rebellious -like us. Instead there was this odd desire to be 'someone special' or to have 'special' bloodlines/heritage etc. I always found it interesting.

In Australia, we were all just simply 'Australians'; Where we came from originally was of no great importance; Italian, Greek, English, Irish, Scot, etc. No one would ever care to ask - and no one would ever think to volunteer such 'unimportant' information.
No offense intended, just an observation from a somewhat different culture. (By the way, Sydney area was indeed settled by Convicts, for a short time in the 1700's but the rest of the Nation was settled by legitimate Immigrants many years later. Sadly, I'm not of Convict decent)