Williams, Stuart, Stewart, Pollett 1880s

Seeking information on John Williams (b 1843 Sydney NSW, a miner) who had several children with Mary Ann Stuart/Stewart b1853 Wellington NSW. Mary Ann’s father Phillip Stuart is buried at Hill End. Mary Ann and John’s first child Beatrice was born in Rylstone in 1882 and their other children were born in Sydney. Mary Ann was first married to William Pollett in 1867 and no marriage certificate found for John Williams. Roslyn