There's an Elizabeth Dowding, 55, wife of James Dowding, 58, plus a George Dowding, 30, living in Clapham. James is a bricklayer's labourer, George is a bootmaker's assistant.
(RG10/698; Folio: 84; Page: 19;). Is that likely to be the one you're after?
There's also an Elizabeth Dowding, wife of Thomas, living in Brighton of the right age, plus one (with middle initial A) in Whippingham, Hampshire also wife of a Thomas.
HTH!
Cate.