Welcome to the Worldwide Greathead family my One-Name Study - Sources 23
- [S22] E-mails between David Campbell and Jan Cooper from 15 April 2003.
- [S25] E-mails between Ronald Cawton and Jan Cooper from 6 October 2001.
- [S87] E-mails between Stephen Martin William Hutchins and Jan Cooper from 8 December 2004.
- [S118] E-mails between Kathryn Steel and Jan Cooper from 13 August 2005.
- [S134] Emails between Sam Culpin and Jan Cooper from 16 October 2009.
- [S156] E-mails between Gemma and Robert Thompson and Jan Cooper from 10 October 2006.
- [S171] E-mails between Jim Hill and Jan Cooper from 21 November 2006.
- [S250] Emails between John Lisle and Jan Cooper from 24 December 2008.
- [S276] E-mails between Dave Hullett and Jan Cooper from 30 September 2009.
- [S290] E-mails between Greg McCann and Jan Cooper from 22 February 2010.
- [S3000] Emails between Joy Greathead and Jan Cooper 19 August 2004.
- [S5320] E-mails between Christie Jessop née McCabe and Jan Cooper from 12 February 2009.
- [S5323] Emails between Vivienne Broderick née Greathead and Jan Cooper from 14 March 2003.
- [S5370] Letters between Stanley Greathead and Jan Cooper From 2 March 2003.
- [S5377] Emails between Rebecca Greathead and Jan Cooper from 6 March 2003.
- [S12792] Emails between Wendy Collinson ID 12792 and Jan Cooper from 16 March 2003.
- [S13654] E-mails between Susan Greathead née Smith and Jan Cooper from 8 May 2010.
- [S14185] Emails between John W Greathead and Jan Cooper from 2 July 2005.
- [S21370] Emails between Heather Primeau née Lindstedt and Jan Cooper from 8 September 2008.
- [S22773] Emails between Anne Marie Powell and Jan Cooper from 15 May 2009.
- [S23508] E-mails between Stef Parry and Jan Cooper from 23 August 2009.
- [S26467] Emails between John Hamilton Fletcher and Jan Cooper from 28 January 2011.
- [S28208] E-mails between Michael Torkington and Jan Cooper from 5 March 2012 title.
- [S40034] Www.mcchouston.org.
- [S41882] Canada Census 1881 - 4 April 1881.