Welcome to the Worldwide Greathead family my One-Name Study - Sources
- [S23] E-mails between Rob McConeghy and Jan Cooper from 7 March 2003.
- [S64] E-mails between Jack Weldon and Jan Cooper from 1 August 2004.
- [S80] E-mails between L Bee and Jan Cooper.
- [S111] E-mails between Roger Blankenbeckler and Jan Cooper from 1 May 2005.
- [S421] E-mails between Kevin Lynott and Jan Cooper from 27 February 2018.
- [S3695] Emails between Frederick Greathead and Jan Cooper from 18 April 2004.
- [S3738] Emails between Celia Lane née Greathead and Jan Cooper from 21 January 2003.
- [S3752] Emails between Heather Allen née Greathead and Jan Cooper from 26 December 2002.
- [S3762] Emails between William Greathead and Jan Cooper from 31 December 2002.
- [S3802] Letters between Sandra Greathead and Jan Cooper from 2 March 2003.
- [S4186] Letters between Deirdre Greathead and Jan Cooper from 2 March 2003.
- [S4278] Emails between Alan Greathead and Jan Cooper from 2 March 2003.
- [S4376] Letters between Dorothy Greathead and Jan Cooper from 2 March 2003.
- [S4808] Letters between John D Greathead and Jan Cooper from 2 March 2003.
- [S4814] Letters between Irene S Greathead and Jan Cooper from 2 March 2003.
- [S8558] Emails between Karen Rollinson née Greathead and Jan Cooper from 20 September 2002.
- [S13654] E-mails between Susan Greathead née Smith and Jan Cooper from 8 May 2010.
- [S14594] Emails between Stanley Sheehan and Jan Cooper from 27 September 2005.
- [S15694] Emails between Sheryl Lee Greathead Campbell and Jan Cooper from 27 November 2005.
- [S18273] Emails between Jessica Greathead and Jan Cooper from 15 March 2007.
- [S23456] E-mails between Olwen Jewson and Jan Cooper from 18 August 2009.
- [S24728] E-mails between John Frith and Jan Cooper from 16 March 2013.
- [S26473] Emails between Sara Green and Jan Cooper from 8 November 2010.
- [S40005] Www.riverduck.com/wanlessweb/clairetree/D1.htm.
- [S40012] Www.carmenj.my100megs.com/PenningtonPage/johanna.htm.