!!!
1861 census,
RG9/2004, 74/13
7 Bilston Street Court C(?), Bilston
Charles Hill, 59, iron moulder, b. Butterley Derbyshire
Sarah, 56, wife, b. Staffordshire West?

Thomas, 19, son, Pudler, b. Bilston
John Hughes, 8, grandson, b. Bilston
Samuel Shipley, 18, lodger, forgeman, b. Newton
The IGI shows a number of children christened in Bilston to this family.
In 1841:
HO 107/1001/2 folio 8 page 7
Hall Fields, Bilston, Wolverhampton
Charles Hill, 39, Iron Lab, b. out of county
Sarah, 37, b. in county
Elizabeth, 13, b. out of country ("France" written next to that?)
Charles, 10, b. out of county ('dittoed' for France?)
John, 7, b. in county
Henry, 5, b. in county
Willm, 2, b. in county
I think in 1871 Sarah might be widowed, living in Walsall with a widowed sister Hannah Adams. Place of birth looks like Westbromich. In 1881 she's living with her widowed daughter, Sarah Jones.
Still trying to find what happened to the children Charles and Elizabeth, who may be clues to where in France the family were. I don't have access to the 1851 census, which would help a lot.