Hi Roger,
I have the 1901 census. I'm not sure that you have the correct family. I have a Margaret Ann not an Ann Margaret. Margaret Ann married a Robin Valentine Collins/Collings, in 1906, not a Crongie Fowler. By the way, It's Gelligaer not Gelligan. In 1901 the family was living at 1 Gwerthonor Place, Gilfach, Bargoed, In the parish of Gelligaer. In the 1911 census, Margaret and Robin are living at 29 St Anne's Rd, Gilfach, Bargoed with their 2 children, son Thomas Llewellyn and daughter Doris. Both are buried, together,at St Catwg's Churchyard, Gelligaer.
Best Wishes
Carol