I don't know if anyone's still interested in this thread but I managed finally to piece together the children of James Sellwood and Diana Tidbury:
James Sellwood, bap. 14 Jan 1765 at BKM: Chieveley, bur. 26 Mar 1847 at BKS: Chieveley
+ Diana Pennington Tidbury, bap. 1 Jul 1781 at BKS: Woolhampton, m. 30 Jan 1802 at BKS: Bucklebury
├── William Sellwood, bap. 7 Nov 1802 at BKS: Bucklebury, d. 13 Feb 1877 at USA: Tooele, Tooele, UT, bur. 15 Feb 1877 at USA: Tooele, Tooele, UT
├── Hannah Sellwood, bap. 10 Feb 1805 at BKS: Bucklebury, bur. 16 Apr 1868 at BKS: Bucklebury
├── Fanny Sellwood, b. 1 Sep 1807 at BKS: Oare, bap. 13 Sep 1807 at BKS: Chieveley, bur. 18 Nov 1895 at BKS: Thatcham
├── Elizabeth Sellwood, bap. 15 Nov 1810 at BKS: Bucklebury, bur. 30 Jan 1811 at BKS: Bucklebury
├── Charles Sellwood, bap. 9 Aug 1812 at BKS: Bucklebury, d. 25 Mar 1884 at USA: Union City, Branch, MI
├── John Sellwood, bap. 4 Dec 1814 at BKS: Bucklebury, d. 26 Mar 1895 at BKS: Bucklebury, bur. 30 Mar 1895 at BKS: Bucklebury
├── Joseph Sellwood, bap. 23 Mar 1815 at BKS: Bucklebury, d. 24 Nov 1898 at BKS: Bucklebury
├── Caroline Sellwood, b. 23 Mar 1816 at BKS: Bucklebury, bap. 19 May 1816 at BKS: Bucklebury, d. 23 Jul 1899 at USA: Grouse Creek, Box Elder, UT
├── George Sellwood, bap. 15 Feb 1818 at BKS: Bucklebury, bur. 2 Oct 1875 at BKS: Wantage
└── David Sellwood, b. 1822 at BKS: Bucklebury, bur. 3 Nov 1878 at BKS: Cold Ash
Matt