I looked up this family in the 1861 census. They were living at 14 White St, Heolwermod which is now a part of Merthyr Tydfil. Below is the individual info.
Henry, age 52, Baller in iron works, born in Bitton, Glamorgan county [?]
Rachel, 45, Merthyr Tydfil
John, 24, Puddler, Llanganhard, Glamorgan
Benjamin, 21, baller, Llansamlet, Glamorgan
Francis, 19, Baller, Coedfrank, Glamorgan
Ann, 17, Coedfrank, Glamorgan
Josiah, 15, Rougher, Coedfrank, Glamorgan
Robert, 13, cather in iron works, Llanelly, Breacon
Susana, 11, Blaenavon, ? [Glamorgan I think]
Maria, 8, Dowlais, Glamorgan
Edwin, 4, Dowlais, Glamorgan
The family moved aobut quite a bit. My Jones come from Merthyr Tydfil in the early 1800's. I don't think we are related throught the Jones but we might be through Rachel. If you find her maiden name, let me know.