Hi magicnanny,
They are at 27 Miskin Road, Ystradyfodwg and these are the details:-
William Jones Head, Widower, 54, b Llangaddock, Carmarthenshire
John Jones Son, 24, Coal Hewer, b Ystrad, Glamorgan
William Jones Son, 21, Coal Hewer, b Aberystruth, Monmouth
Thomas Jones Son, 19, Coal Hewer, b Ystrad
Cath M Jones Daughter, 18, Housekeeper b Ystrad
Evan Jones Son, 15, Coal Hewer, b Ystrad
I think Llangaddock is an anglicised version of Llangadog and presumably Ystrad is short for Ystradyfodwg. The whole family were bilingual. The father's occupation looks like 'Porter on T.V. Railway'.
Cheers,
Gwyn