This might be them.
Emma KIMBERLEY in 1871 was in Camberwell, aged 19 a servant born in Banbury, Oxfordshire.
FreeBMD has a marriage for an Emma Mary KIMBERLEY, Sep qtr 1874, Hackney, 1b 790b.
Grooms are William CLARK and Harry Herbert MITCHELL. No Emma MITCHELL in 1881 but there is Emma M CLARKE.
Ellen Elizabeth KIMBERLEY was born Mar qtr 1874 Wandsworth, 1d 643, makes her about 7 in 1881.
Beatrice Maria CLARKE born Jun qtr 1876, Wandsworth, 1d 626, makes her about 4 in 1881.
Hundreds of William CLARK/CLARKE deaths between 1876 and 1881 to nail him down.
FreeBMD has Emma Mary KIMBERLY born at Banbury Mar qtr 1851, who is with her parents James and Ann and family at Neithrop, Banbury, in 1861.
Ian C