Hi Dave,
No, I don't have those details of that marriage.
I have a copy of Sybella's marriage certificate with John Carter (Church of St Peters, Melbourne; 13 August, 1858), in which she is named as "Sybella Catharine Birkhead: Spinster". This spelling of "Catharine" features twice on the form, but elsewhere she is always written as "Catherine". Nor is there any reference to "Baither" on that form.
Following on from the info I sent previously, Sybella's son wrote, "No sooner did the voyage end than the Adelong gold rush occurred and, forsaking his job he (John Alexander Carter) made straight for the new field with his wife and infant daughter, Emily, who in later years married John Channon, a leading business man of Adelong."
As a Channon, I am chasing along that line too. And Sybella is my great-great-grandmother.
I did notice mention of a "Mr Newbury" not "Newbery" being a tailor in Adelong between 1860-1880; living in a house there called "Blink Bonny". If that's of any interest to you?
Regards,
Bruce