Hi Sue,
Thanks for your reply. I did realise that Greg was looking at the other Robert Corkill, however, I thought other people might be interested in this one.
Robert Corkill and Helen nee Nicholson came into South Australia in 1852 and later moved to Victoria. I have then on a passenger list. Also Robert was on the 1851 census in Penninghame and married there.
My gggrandmother Mary Ann married in 1853 in South Australia and no, no parents are named for either party. The death certificate in 1879 do not list any either. There was only Robert, Thomas and Mary Ann as Corkills in Adelaide at the time Her date of birth on the marriage cert. was 1821. These are the only clues I have. Thanks for any help you could give
Robin