Hi there Ian,
I'm a 'newbie' family researcher looking into my family. My grandmother, Menetta Coral Walker (nee Hutton) of Beaconsfield Tasmania (d. 2004), had done a fair whack of research in the decade before she died, unfortunately she suffered from slight senility so the information is not always reliable.
According to the info I have, my grandmother's grandfather was David Downey Hutton, son of Catherine (nee Downey) and Robert Joseph Hutton, an accountant (

) from Edinburgh, Scotland. Catherine and Robert Joseph were married 8 December 1856.
David married Alberta Ann Jenkin and had 3 children together:
*** William Joseph Hutton, who was my grandmother's father.
*** Minette Coral, a dashing young lass who eloped to NZ
*** Eva May - who is still a complete mystery to me!
David and Alberta ran the 'A.A. Hutton' general store in Beaconsfield until Alberta's death. David was a miner, and like many others in the family was 'accidentally killed' (I'm guessing during work hours).
Cheers, Sarah