John Samuel Chadwick - Pedigree | FamilyCentral
 1 Oct 1862 - 1 Jun 1947
 30 Mar 1821 - 4 Jul 1904
 8 May 1831 - 8 Nov 1912
 15 Oct 1786 - 5 Jul 1857
  - 28 Jan 1867
  - 9 Jul 1839
  - 4 Oct 1842
  - 29 May 1805
 Abt 1725 - 13 Jan 1790
  - 16 Sep 1815
  - 5 Aug 1811