NSW - John SMITH married Ann DUMVILLE - Why that name!!

[alan_t]

I'm looking to find descendants of this ancestor by marriage.

He was a convict (don't know which transportation ship he was on; nor why he was transported - but would be interested to find out).

All I know is that he married my wife's ancestor Ann Dumville at St Phillips Church in Sydney on 31 Oct 1836.  See previous post for background info: http://www.rootschat.com/forum/index.php/topic,477672.0.html

Ann was not a convict so they were allowed to marry apparently.  Cannot find parish records for this church online to get full DOBs, addresses, etc for them. Indeed, it's exceedingly difficult to perform any searches on the couple in any respect because of his common surname and her common first name!

Looking to find out whether they had any children, what their names and DOBs were, marriage dates, etc. 

Any info would be gratefully appreciated, tho' I understand that the SMITH factor complicates efforts.

Many thanks
Alan