Welcome to the Worldwide Greathead family my One-Name Study - Sources
- [S53] E-mails between Ashley Jones and Jan Cooper from 7 May 2006.
- [S105] E-mails between Chris Abbley and Jan Cooper from 13 March 2005.
- [S161] E-mails between Patricia Frykberg and Jan Cooper from 23 October 2006.
- [S224] Emails between Ruth Smith née Filby and Jan Cooper from 11 April 2008.
- [S398] E-mails between Brian Bouchard and Jan Cooper from 25 Sepember 2013.
- [S4675] E-mails between Kyra Matthews and Jan Cooper from 17 October 2023 title.
- [S4681] E-mails between Mandy Bellis and Jan Cooper from 4 May 2016.
- [S4692] Emails between Jenny Lynne Greathead and Jan Cooper from 15 September 2009.
- [S4765] Letters between Margaret Greathead and Jan Cooper from 2 March 2003.
- [S4782] Emails between Margaret Greathead and Jan Cooper from 2 March 2003.
- [S4785] Letters between Andrew Greathead and Jan Cooper from 17 March 2003.
- [S4788] Letters between Ruby Greathead and Jan Cooper from 2 March 2003.
- [S4800] Letters between David J Greathead and Jan Cooper from 2 March 2003.
- [S4844] Emails between Michael John Greathead and Jan Cooper from 12 May 2010.
- [S4895] Letters between the child of Naomi Greathead and Jan Cooper from 2 March 2003.
- [S4971] Letters between Edith Craig née Wilson and Jan Cooper from 18 March 2003.
- [S4976] Emails between Carole Greathead and Jan Cooper from 2 March 2003.
- [S4977] Emails between Thomas William Greathead and Jan Cooper from 2 March 2003.
- [S4979] Emails between Simon J and Anna S Greathead née Hodkinson and Jan Cooper from 2 March 2003.
- [S10276] Emails between Lainie Rusiniak and Jan Cooper from 5 December 2004.
- [S11493] Emails between Peter Krafft and Jan Cooper from 20 April 2004.
- [S12350] Emails between Martin Forbister and Jan Cooper from 18 December 2004.
- [S16543] Emails between Celeste Noli and Jan Cooper from 13 May 2012.
- [S20634] Letters between Marjorie Fry née Smith and Jan Cooper from 8 March 2008.
- [S32180] Emails between Barbara Glancefield and Jan Cooper from 25 May 2016.