Thank you everybody.
My Father also remembers the family saying that the Maidens couldn't read or write and that they said a last name and the person that took the census wrote down what he thought, so it could have been any surname that sounded like Maiden, my father also remembers that Robert had sisters, but I can't remember if he said if they were living near to where Robert was living in Penrhiwceiber, something sticks in my mind that they were living near but again I must ask this, now if this Elizabeth Ellen is living in Abercynon then its not far from Robert or from their mother Elizabeth who was also living in Abercynon with her new husband Patrick Clark which was in Sep 1983 a year after the daughters.
I have the marriage certificate for Robert and his wife Jannet Williams in 1907 Bedwellty, Monmouthshire, at the time of the marriage Robert was living with Jannet and her parents at 44, Church Street, Aberbargoed, Roberts father had died by then but his profession was given as a miner, so was Robert's, his fathers death could be the one in Bridgend 1893.
We don't know anything about Arthur or his wife the family has never spoken of them only of Robert and his wife Jannet who I have met when I was young, she was very old and not very well, I also have two photos of her, one when she was young and one when she was old the time I met her.
Thank you for all your help.