Hi Cherokee. Going through some old scribblings handed down by an elderly ancestor, I found the following comments, annotated with lots of question marks -
"Founder was Batup who came from France" - He may have come from France originally, but his application for emigration (No. 442) gave his address as Wells Street, London, and it gave his occupation as seaman. Then it gets confusing. Although he applied for emigration, he came out on the "Sarah & Elizabeth", which was a convict ship bringing 96 female convicts to Port Jackson in NSW, departing London on the 1st January, 1837 and arriving in Port Jackson on 23rd April, 1837. If he was on this ship, it must have been as a seaman, which does not tie in with his emigration application to South Australia.
"He married and had 2 children Liz and James." - If your information from BISA is correct, the third child may have been William.
"After his wife died in childbirth he went to the Gold fields in Victoria (?1960) and the children were brought up by the state." - I had a death date of 1853 for his wife Mary Anne (nee MacMillan). I am trying to find where I got that, but if it is incorrect, his wife may have died giving birth to William. The fact that the children became wards of the state could explain why the word "asylum" was included in Williams death notice. It could also explain why Peter Baytup's name appeared in the passenger list of the "Colonist" to California on 12 Jan 1850. Perhaps he decided to move from the Australian to the Californian gold fields. James was orphaned at 11 years of age, which would have been around 1853, so maybe Peter Baytup died in that year.
"Daughter Liz did not marry?" - I have not found any trace of Liz.
Cheers, Hank