Welcome to the Worldwide Greathead family my One-Name Study - Sources
- [S34] E-mails between Jeffrey Knaggs and Jan Cooper from 16 June 2003.
- [S39] E-mails between Becky and Jan Cooper from 16 September 2003.
- [S125] E-mails between Jo Crayford and Jan Cooper from 27 September 2005.
- [S210] E-mails between Shannon Flewellen née Stewart and Jan Cooper from 13 October 2005.
- [S227] Emails between Maureen Ille and Jan Cooper from 29 June 2008.
- [S275] E-mails between Shirley Sanderson and Jan Cooper from 28 September 2009.
- [S355] E-mail and spreadsheet from Linda Hunter Guild member in Australia.
- [S394] E-mails between Jim Tilt, Sunderland, Tyne & Wear, England and Jan Cooper from 5 July 2013.
- [S1428] E-mails between Ruth M Sadler and Jan Cooper from 22 February 2010.
- [S1713] Letters between David Greathead and Jan Cooper from 28 October 1996.
- [S2499] Emails between Andy Greathead and Jan Cooper from 23 July 2001.
- [S3196] Emails between Alan Greathead and Jan Cooper from 18 January 2003.
- [S4524] E-mails between Rod Bullock and Jan Cooper from 13 December 2014.
- [S4561] Emails between Hilary Patricia Ferrey - Groves and Jan Cooper from 20 September 2001.
- [S4747] E-mails between Dan Robinson and Jan Cooper from 12 July 2020 title.
- [S4908] Letters between Ronald Greathead, Tim Ely and Jan Cooper.
- [S8701] Emails between Patricia Smith née Reay and Jan Cooper from 29 June 2003.
- [S9482] Emails between Philip Greathead and Jan Cooper from 28 August 2007.
- [S9811] Emails between Bruce Bartle ID 9811 and Jan Cooper from 18 April 2006.
- [S11692] Emails between Lorraine Kenny née Greathead and Jan Cooper from 26 May 2004.
- [S12700] Emails between Kevin Law and Jan Cooper from 2 February 2005.
- [S23276] Emails between Val Butcher née Evans and Jan Cooper from 31 July 2009.
- [S29034] E-mails between Errol Richards and Jan Cooper from 12 October 2012.
- [S29309] E-mails between William Stuart Hamilton Cameron and Jan Cooper from 27 April 2007.
- [S47002] General Register Office, Information taken from Death certificate of son.