Thankyou Cando, I am fairly certain that I have explored all those sites, but will double check them.
Answering Sue's question, in brief;
John William BILLIATT, first arrived South Australia 1861, he was in John McDouall Stuart's party that crossed Aust from South to North (& back), he went back to England as a lecurer, he lead the doomed Paraguayan emigration scheme in Oct 1872, returned to England and then in July 1873 "arrived back in South Australia and living in Glenelg". The date of July 1873 is wrong.
It is 3 photos I have, that prompted this search. I am convinced that they are of John William BILLIATT and his parents. I need to validate it before I donate them to the State Library of SA.
Regards
Grantley