Hehe - not easy, no.
Unfortunately this publicly available births data ends at 1906, so even if I used the database to find out who the Narelles married, I can't find out the names of their children. And since they're almost certainly all deceased now, the trail goes cold there.
There's no similar data available from any of the other Australian states, so it's impossible to tell whether it was used earlier elsewhere. For all we know, NSW might have been latecomers to Narelle
I'll let you know if I find out anything else at any point - new databases may come online, if we're lucky.