This is what I have for William and Harriet and their kids
William EVEREST (b.Abt 1786;d.7 Jan 1847-6 Market Terrace,St Leonards,Sussex) sp: Harriet GURR (b.Abt 1789-Westham,Sussex;m.13 Sep 1807;d.22 Oct 1877-41 Gensing Rd,St Leonar,Sussex)
CHILDREN OF W & H 1. Harriet EVEREST (b.4 Oct 1808;d.24 Apr 1895-Union Workhouse,Hastings,Sussex) 2. William Turner (Fromer?) EVEREST (b.29 Aug 1811;d.7 May 1883-Heathfield,Sussex) sp: Harriet DUNK (b.Abt 1815-Hellingly,Sussex;m.31 Aug 1846) 3. Ann EVEREST (b.29 Jan 1814;d.13 Jan 1844) sp: Charles TOWNER (m.1839) 4. Charlotte EVEREST (b.24 Nov 1816;d.24 Jan 1838) sp: William PAYNE (m.1837) 5. Charles EVEREST (b.12 Jan 1820;d.Aug 1878) 6. Elizabeth EVEREST (b.12 Oct 1822-Westham,Sussex;d.Abt 1881) sp: Stephen EVEREST (b.Abt 1823-Battle,Sussex;m.1 Apr 1850;d.6 Nov 1895-3 Royal T,,E Sussex) 7. John EVEREST (b.27 Mar 1825;d.Jul 1846) 8. Edward EVEREST (b.8 Jan 1828-Pevensey,Sussex;d.20 May 1892-Paddington,London) sp no 1: Martha Florence SMITH (b.Abt 1831;m.3 Mar 1852;d.30 Jan 1872-St Giles,London) sp no 2: Frances VERLANDER 9. Catherine EVEREST (b.11 Sep 1832)
My line is through child number 6 Elizabeth who married another Everest (Stephen).