• [S6] FreeBMD, online http://www.freebmd.org.uk/iindex.shtml
  • [S7] Baptismal Certificate,.
  • [S9] British Census 1881, online http://www.familysearch.org/Eng/Search/frameset_search.asp
  • [S16] Canada Census - 1901 - Index, online http://automatedgenealogy.com/census/NationalSummary.jsp
  • [S26] British Census 1871 (Ancestry.com, 2 Apr 1871).
  • [S33] Goodwin, Olive B., Halifax Mail-Star, December 1998.
  • [S93] Heather MacAlister, "Email Heather MacAlister in Cape Town," e-mail message from to John Cordes, 26 Mar 2004.
  • [S110] Ian, "Cordes in Sheffield" on "Sheffield (General) Message Board", listserve message, April 2005.
  • [S114] Obituary, Chronicle Herald (Halifax), unknown location, 28 nov 1962, 12.
  • [S119] British Census 1891, online http://freecen.rootsweb.com
  • [S121] Henry Cordes, Birth Certificate ,.
  • [S131] Online index to the 1871 Census for Birmingham (Ancestry.com).
  • [S144] Online image of the 1901 Brit. Census for Todmorden, Yorkshire (Ancestry.com, http://content.ancestry.com/iexec/).
  • [S157] British Census 1841.
  • [S159] British Census 1851.
  • [S163] Online index to the 1851 Census for Southwark St George (Ancestry.com).
  • [S166] British Census 1891 (Ancestry.com, 5 Apr 1891).
  • [S175] Personal knowledge.
  • [S338] Nova Scotia Historical Vital Statistics, online https://archives.novascotia.ca/vital-statistics/
  • [S390] John Cordes - Research Notes.
  • [S395] Joseph Lockhart Anne Slinn marriage, 20 September 1847.
  • [S400] Online index to the 1841 Census for Sheffield, Yorkshire, England (Sheffield Records Online - 1841 Census, http://www.sheffieldrecordsonline.org.uk/search2.php).
  • [S405] John Cordes entry, Death Certificate John Cordes, ,.
  • [S407] Online index to the 1841 Census for Sheffield, Yorkshire (Ancestry.com).
  • [S408] Online index to the 1841 Census for Stepney, London (Ancestry.com).
  • [S409] Online index to the 1881 Census for Sheffield, Yorkshire (Family Search).
  • [S412] Cordes-Burberry marriage, 26 November 1859, , . In possession of John Cordes.
  • [S423] Copy marriage certificate of Henry Cordes and Sophia Millard, married 23 June 1845 in the Registration District of Ipswich, Suffolk.
  • [S439] Online index to the 1881 Census for London, Middlesex (Family Search).
  • [S440] Online index to the 1891 Census for London, Middlesex (Family Search).
  • [S441] Online image of the 1901 Brit. Census for London, Middlesex (Ancestry.com).
  • [S538] Pallot's Marriage Index for England: 1780 - 1837, online ancestry.com.
  • [S554] Jennie Armour (Edwards) Cordes, Death Certificate.
  • [S635] Ancestry.com, British Census 1911.
  • [S702] London Metropolitan Archives, Register of Marriages, online http://search.ancestry.com/
  • [S770] Sheffield & District Family History Society - Baptisms, online http://www.findmypast.co.uk/
  • [S801] FamilySearch (LDS), online https://www.familysearch.org/
  • [S802] Ancestry.com: UK Census, online http://search.ancestry.com/
  • [S803] Ancestry.com: Canada Census, online http://search.ancestry.com/
  • [S1171] London Metropolitan Archives, Register of Baptisms, online http://search.ancestry.com/
  • [S1441] Census 1921.
  • [S1479] Obit: Mrs. JENNIE A. CORDES, Halifax Chronicle, February 23, 1945, Page 4.
  • [S1487] Canada Census - 1921 - Index, online http://ancestry.ca/
  • [S2205] Suffolk Baptism Index 1538-1911.
  • [S2570] GRO Online Index.
  • [S2647] England & Wales, Civil Registration Marriage Index, 1916-2005.
  • [S2986] England & Wales, Civil Registration Birth Index, 1837-1915.
  • [S2989] England & Wales, Civil Registration Death Index, 1916-2007.
  • [S3282] National Probate Calendar (Index of Wills and Administrations), 1858-1995.
  • [S3426] British Census 1901.