Hi,
I have found the children of the family -Ann, Thomas, Mary Ann, Osman and my great grandmother Keziah plus others (some names transcribed wrongly) on the 1881 census staying in 66 Forge Street, Rhymney with their uncle Edward Morgan. There is no mention of the mother, also called Keziah. Perhaps the recent loss of her husband David is part of the reason why she was not with her children. The family were together again in 1891 in Moriah Street. I am intrigued to know where Keziah snr was in 1881. Hope this helps
Hywel