Hello again
Don't worry too much about Sarah Elizabeth and Sarah NEWSON, as I said, I have new information on their backgrounds which I'll add here, because I'm sure that John will be interested in that aspect.

Earlier you had given an account about Sarah (Newson / Langdon) - where you'd mentioned she had a brother named Thomas who'd been adopted out ... and that another brother, Robert, had lived "around Rangitikei". ??
I haven't been able to find "a brother named Thomas" for Sarah ... so I'm merely curious about what info you already have and whether your Sarah is indeed the same girl who arrived on the "La Hogue" in 1874. Hence my asking about info on her marriage to Charles Martin DAWSON ... or if there were any clues from her children's births certs. which might give an indication as to her real age at given times or confirm her place of birth.
[The Sarah NEWSON I have (and NEWSON wasn't actually her birth name), was born late in 1858. So if she is the same Sarah who died in 1964, then she was approaching her 106th birthday ! ]

~ Lu