I wonder if the ages are incorrect in the 1881 census and this is the couple living at 322, Bristol Road, Edgbaston. I think the probate granted when John died in 1888 lists his last address as Bristol Road.
POUNTNEY, Jno R Married 56 Leather Merchant Retired b Birm, Warwickshire
POUNTNEY, Milicent Wife 60 b Salisbury, Wiltshire
JONES, Emma Servant 21 Gen Serv Dom
MARSH, Margt Servant 25 Gen Serv Dom
RG11 piece 2953 folio 110 page 43
Kay