Census 1881 seems to be the family:

Richard ROBERTS Head M Male 64 Coleford, Gloucester Mason
Louisa ROBERTS Wife M Female 57 Eleavwell, Gloucester, England Richard ROBERTS Son U Male 28 Eleavwell, Gloucester, England Alice ROBERTS Daur U Female 14 Eleavwell, Gloucester, England George ROBERTS Grand Son U Male 2 Tredegar, Monmouth, England Printer Son George ROBERTSON (ROBERTS) Adopted U Male 12 Tredegar, Monmouth Dressmaker Son
Isabella MIELFORD Lodger W Female 47 (City), Middlesex, England Laundress

Source Information:
Dwelling 13 Cottage Grove
Census Place Lambeth, Surrey, England
Family History Library Film 1341141
Public Records Office Reference RG11
Piece / Folio 0613 / 108
Page Number 44

Can you confirm this?
Brian