Mary Wallace

I have John Wilson and Mary Wallace born about 1800 who married at Paisley, Renfrewshire Scotland near Glasgow on 10th August 1822. They had Margaret 1820, Marion 1823 and John 1827. Margaret came to Sydney Australia about 1840. I believe her to be a free settler as I cannot find her in the convict lists. She married David Jones, a London bricklayer on 2nd June 1841 at the C of E Church at Brisbane Waters NSW. He had been convicted at the Old Bailey as being an accessory to the theft of paper by James Wright