I'm looking for marriage and parents of George Forth, born c. 1820 in Bridlington, Yorks, and Sarah, born c. 1816 in Basford, Nottingham.
In the IGI, I have found a Sarah Lacey White, born 12 Dec 1816, in Basford, daughter of William & Ann -- a possibility.
There are several possibles for George.
George was a hatter in London.The first census I have the family on is 1861 (and thereafter).George & Sarah must have been married somewhere say around 1840, probably in Nottingham, possibly in Surrey.
William, born c. 1846 in Southwark, Surrey Mary, born 7 Oct 1847 in Southwark, Surrey (m.George Johnston) Ann, born c. 1852 in Chelsea, Middlesex (m. a Johnson) George White, born Jun 1853 in Chelsea (m. Mary)