Hi,
I have just stumbled upon this old thread and am very interested in the photos that grantleydawn refers to.
John William Billiatt was my great great great uncle, and his parents of course my great great great grandparents ( i think I've got that right). After years I have searching I have never been able to find pictures of them. Would love to see jpegs of them if possible!
Without seeing the pics or knowing more, I would be a little surprised if they are in fact pictures of JW Billiatt's parent taken in Adelaide. My family records, including many many letters, suggest his parents never left the UK. If the picture was taken in say 1872, then there is a very fair chance that it was taken in London in 1872 before JW Billiatt departed for Paraguay. I am not aware if he returned to London after the Paraguay disaster, so it could have been taken there in 1873 before they then returned to South Australia.
Hope this is of use...regards Paul