Hi just in case this is Maria in 1851:-
Sarah King 31 Unmarried occ Servant b Abingdon Berks
Maria King 9 Visitor b Earls Court, Brompton
Sarah is a servant for John Williams aged 60 b Bloomsbury
Residing at 14a, Princes Street, Marylebone.
Census Ref HO107/1487/431/68
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