Many thanks to Alberta, I now have the name John Biddulph (b1845/6) in the tree and am on his trail. I already had Pountney name and was delighted when I found John Biddulph staying with the Pountneys in 1861 census, as a boarder. Address looks like 36 Fordrough (?) St, St Thomas dist, Birmingham. Head is Thomas Pountney (61) wife Anne (60), unmarried sister Caroline (40), sons Thomas (23) Henry (20) and George (16).
Can anyone help me to find a family connection between John Biddulph and the Pountney family? Later census returns show John married to Harriet. There is a Harriet Pountney married in Aston in 1871, but also a Harriet Adcock married in Aston in 1871 - and the latter is on the same page as John Biddulph, so more likely.
Henry Pountney (b1841) was the grandfather of the woman who in 1924 adopted John Biddulph's grandson, after the death of the child's mother (John Biddulph's daughter). If there is no connection, this seems a remarkable coincidence.