Yes Cando I have all this info.
Even though Catherine didnt marry Henry Thallon until about 6 years after my Great Grandfathers birth Henry Thallon may have been known to the families.
Floozy I am aware that you have the information as I mentioned others may notice something you may have missed. I think you may have missed the point of me detailing the little information that I found in a quick search.
I would say that Henry THALLON was well known to John GARRETT

REAL PROPERTY ACT
Notice is hereby given that
Henry Thallon and
John Garrett of Richmond, Storekeepers, have applied to have brought under the provisions of the Real Property Act the land described at the foot hereof; and that the Commissioner of Titles has appointed that on the expiration of fourteen clear days from the date of this advertisement in the
Government Gazette the Registrar General unless he shall in the interval receive and
equeat to do so, proceed to bring such land under the provisions of the Act.
Dated Ninth day of March 1864.
THE LAND REFERRED TO
Part of portion number twenty-three, Parish of Jika-Jika, County of Bourke: Details of measurements..........Also part of the same portion lying at the north west corner having frontage to the Punt road of a hundred feet by a depth of three hundred and sixty three inches.
Horace Sampson
Assistant Registrar General
Jennings & Coote
37, Queens street, Melbourne
Solicitors for the applicants.
I suggest you place a request on the New Zealand board or have a browse of their resources board for shipping records. I have searched there albeit a while ago, and found they have lots of passenger/shipping records online.
Once again...the birth certificate of one of the children born in Victoria would give you his occupation.
If I get time later today I will search some trade directories for Victoria. I realise this doesn't give you confirmation of the details you require but it does prove another link with the families.
Cheers
Cando