Mary Jane Stewart was Born C 1837 Cape of Good Hope She Married John

Mary Jane Stewart was born C.1837 Cape of Good Hope. She married John Thomas Wright 9th May 1862 Taroom Qld. son of John wright and Catherine Craddock Looking for any sibblings or information/origin on Mary's Parents Robert Stewart N.C. Officer 77 regiment and Mathilda Smith and when the family came to Australia and if they stayed.
Thank you.