I have some information on the Hopwood family some of whom were born at Bryn y Baal, Argoed. Anybody who could offer more info - please do!
Isaiah Hopwood ch.26.03.1834 son of William Hopwood(Collier, Argoed) and Margaret
married Martha Jones(Registered Dec 1854 Great Boughton)
1861 Census, Bryn y Baal, Argoed (RG09 Piece 4275 Folio 7 Page 7)
Isaiah Hopwood Head married 27 Coal Miner b.Flint, Mold
Martha Hopwood Wife Married 27 b.Denbigh, Ruthin
Mary Hopwood Daughter 5 b.Flint, Argoed (ch.09.10.1855)
Margaret Hopwood Daughter 3 b.Flint, Argoed (ch.16.11.1856)
John Hopwood Son 2 b.Flint Argoed
William Hopwood Son 0 b.Flint Argoed
1871 and 1881 - no info yet
1891 Census Chamber Lane, Mold, Argoed
Isaiah,head,married, 57,Coal miner
Martha,wife,married,57
Mary,daughter,single,36,dressmaker
James,son,single,23,coal miner b.Mold
Kendrick,son,single,18,saddler b.Mold
Edith E,daughter,14,scholar b.Mold
I know they had another daughter Martha Ann born 26.11.1874 at Bryn y Baal. She married James Henry Bottomley at Byrom Hall Baptists Church,Liverpool on 20.09.1899. My line runs from this couple.
Hope some of this might be useful. Please feel free to add anything.