Hi Ellen,
Firstly I will go with the parish records for owen and gwen Roberts, but perhaps the rest of the family would come under st marys.Thomas born 1844 a stonemason would I was telling you about lived at 10 Twnan tce on 1891 census and on the 1901 census Thomas is at Basildon house HHIW bank ave springbank with his family also visiting bricklayers with surnames Acres, Rees,Mcgaril don't know if you know any of these people.The John Roberts born 1663 is Llansaffraid Glan Conway and lived in Tynewydd he died aged 90 Glan Conway,he is the one who married Elizabeth Thomas at denigh. I was led to believe that Denigh was a village in glan Conway, if at all possible would you be able to find anythink about his father William Roberts who married Alicea don't know her surname but have a burial for her Alicea died 9 july 1677 glan Conway I could only find two children John 1663 and david 1665, I know david had a daughter also called Alicea is was born 22 may 1706 other than that I have on more info.
Thankyou so much for helping me, this is my fathers line who I lost a few months ago and it means a great deal to me.
Regards
Lynne