Hi Tiki...
Thanks for the PM. Kiwi born and bred but had a twenty year OE in the UK. Had a good look around at the time so am reasonably familiar with that part of the world. Having said that, the internet has turned the world into a series of websites so one National Archives of [insert country] website is pretty much like another.
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I had forgotten that in 1867 the two daughters would still have been quite young. If they did travel with George, and if they all remained together in England for a few years, it should make it easier to identify them in the 1871 census.
I don't think you'll have much luck finding the passenger list for the Ballarat, although I hope I'm wrong. By all accounts pre-1878 UK incoming passenger lists are virtually non-existent.
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Is your Alfred HUETT the Alfred who married Eliza in 1879 and died in 1938. I'm just asking because the probates for both Alfred and Eliza are held at Auckland Archives. If his sisters Agnes and Catherine remained in NZ and had children these children might be mentioned in the probates. Maybe a bequest to a niece/nephew. Maybe not. No harm in asking for an Auckland Archives look-up.
HUETT Alfred - Whangarei - Settler - 1938
http://archway.archives.govt.nz/ViewFullItem.do?code=18787HUETT Eliza - Whangarei - Married Woman - 1929
http://archway.archives.govt.nz/ViewFullItem.do?code=9382948Have you seen the 1938 obituary for Alfred that is mentioned on the NZ Card Index. If not, I'll see if it's on the NZ Bio's fiche at my local library.
NZ Card Index
http://www.aucklandcity.govt.nz/dbtw-wpd/nzcardindex/-----
Was having a look at the Agnes WARD m.s THOMAS that I mentioned earlier in this thread. Her burial record on the Purewa cemetery fiche says she was born in England. Worth keeping in mind but certainly not conclusive proof. For what it's worth one of her sons (Thomas Addis WARD) is in Whangarei during WW1.
Maybe ask for her ITM. Might mention something. Might not

Regards
Beg