Hi
Re the place Sarah Rutherford is native of - could it be Desertcreat which is relatively near Cookstown where her husband is from? I know it doesn't look like that, but realise that this information is being given to an English or even an Australian official, by someone with probably a strong Irish accent - say it phonetically and you'll see what I mean.
Presume you know that 'no complaint' after the R&W bit means she had no complaint about the voyage out, not that she had no complaint as in disease?
Do we know the date of this? or the ship?
Heya
I think your probably right - it was a ship called the "Elizabeth" and the date was August 1841 arriving in New South Wales , Australia - into Sydney I believe.
They were in NZ a year or two after that I believe.
Cheers
Andy