John Derby, (twin) - Pedigree | FamilyCentral
 12 Aug 1843 - 14 Aug 1843
 10 Mar 1812 -
 1818 -
 1 Oct 1769 - Aft 1819
 8 Jul 1776 - 2 Mar 1856
 6 Oct 1742 -
 Abt 1743 -
 16 Dec 1744 - 13 Sep 1819
 1 Sep 1746 - 17 Oct 1829
 23 May 1698 -
 8 Mar 1701 -
 9 Jun 1717 - 22 Apr 1777
 16 Oct 1722 - 20 Feb 1775
 23 Feb 1716 - 28 Dec 1799
 9 May 1722 - 6 Dec 1800