Welcome to the Worldwide Greathead family my One-Name Study - Sources
- [S189] E-mails between Trevor Gilbert and Jan Cooper from 30 December 2012.
- [S323] Emails between Paul Featherstone and Jan Cooper from 27 February 2011.
- [S328] E-mails between Patricia Storer and Jan Cooper from 2 May 2011.
- [S337] Emails between Sandra Griffin and Jan Cooper from 7 July 2011.
- [S353] Emails between Katrina Shelley and Jan Cooper from 2 May 2013.
- [S402] E-mails between Peter Hayward Harman and Jan Cooper from 19 October 2011.
- [S414] E-mails between Sheila Harris and Jan Cooper from 3 September 2015.
- [S634] E-mails between Kathryn Tanswell and Jan Cooper from 3 November 2016.
- [S6566] Emails between Brian Crossland and Jan Cooper from 12 November 2011.
- [S21205] E-mails between Stephen Paul Tunley and Jan Cooper from 7 June 20.
- [S22380] Emails between Tracie Robinson and Jan Cooper from 21 March 2009.
- [S23983] E-mails between Peter Thomas and Jan Cooper from 11 February 2010.
- [S24948] E-mails between Robert Charles Wheeler and Jan Cooper from 4 May 2010.
- [S25374] Emails between Ray Clubbe and Jan Cooper from 4 August 2010.
- [S25394] E-mails between Margaret E Edwards and Jan Cooper from 27 July 2010.
- [S25864] Emails between Joanne Wright and Jan Cooper from 9 October 2010.
- [S25933] E-mails between Tony Banham and Jan Cooper from 12 October 2010.
- [S26262] E-mails between Joanne Alexander-Sehre and Jan Cooper from 10 December 2010.
- [S27293] E-mails between Bronwyn Raphael née Walter and Jan Cooper from 21 September 2011.
- [S27407] E-mails between Allison Moses née Conde and Jan Cooper from 19 December 2016.
- [S28566] E-mails between Judith Morgan-Russell and Jan Cooper from 12 June 2012.
- [S29835] E-mails between Alex Barlow and Jan Cooper from 25 May 2013 title.
- [S31360] E-mails between Flavia and Jan Cooper from 23 February 2010.
- [S33165] Letters between Tracey Buckley and Jan Cooper from 7 August 2018.
- [S47014] E-mails between Paul Bramwell and Jan Cooper from 13 November 2019.