a family tree on ancestry has another son for Marian:Reginald Allen Moyseb. 8 Feb1909 DevonportSeems he was adopted by Arthur John Blackburn and his wife Maud Elizabeth (Dawson)Perhaps you could try finding Reginald in the 1911 census?
wow, im sinking into a massive web of confusion here!! lol,now have death and birth, and marriage to cudlipp, but what happened between birth and marriage! how can i find her mother? theresa is listed in 1911 census as being step daughter to elizebeth and /// thomlinson, the in 1901 census, i can see a teresa a moyse as a step daughter again with elizabeth and a ?harry? moyse??Im soooo confused