Welcome to the Worldwide Greathead family my One-Name Study - Sources
- [S352] E-mails between Charlie Wilson and Jan Cooper from 17 February 2013 title.
- [S377] E-mails between Martin Avery and Jan Cooper from 23 February 2015.
- [S389] E-mails between Stephen Daglish and Jan Cooper from 24 December 2012.
- [S415] E-mails between Tim Hewitt and Jan Cooper from 21 January 2009.
- [S416] E-mails between David Boardman and Jan Cooper from 11 November 2014.
- [S504] E-mails between Steve Wright and Jan Cooper from 16 June 2016 www.stevewright.nz.
- [S509] E-mails between Bev Detoeuf and Jan Cooper from 24 July 2020 title.
- [S26844] E-mails between May Hadlow and Jan Cooper from 12 October 2012.
- [S29092] E-mails between Lisa Royles née Greathead and Jan Cooper from 12 September 2018.
- [S29413] E-mails between Barry Mein Smith and Jan Cooper from 4 January 2013.
- [S30010] E-mails between June James née Nessfield and Jan Cooper from 19 April 2020.
- [S30139] E-mails between Vanessa Walker and Jan Cooper from 4 July 2013.
- [S30193] Emails between Andrew Gauntlett Trend and Jan Cooper from 22 July 2013.
- [S30199] Emails between Pat Nessfield and Jan Cooper from 29 July 2013.
- [S30628] E-mails between Jennifer Fowler nee Bunn and Jan Cooper from 7 November 2013.
- [S30861] E-mails between Susan Taylor née Peck and Jan Cooper from 4 February 2014.
- [S32068] E-mails between Joanne Shaw and Jan Cooper from 22 April 2016.
- [S32940] E-mails between Ian Alexander Davey and Jan Cooper from 8 December 2017.
- [S33154] Emails between John Ingram Strickland and Jan Cooper from 6 August 2018.
- [S33401] E-mails between Craig Clarke and Jan Cooper from 6 December 2018.
- [S33568] E-mails between Serena Romano and Jan Cooper from 6 July 2019.
- [S33675] E-mails between Peter Lowe and Jan Cooper from 30 December 2019.
- [S33829] E-mails between Clare Perkins née Whayman and Jan Cooper from 5 April 2020.
- [S33962] E-mails between Steve Tunley and Jan Cooper from 20 November 2020.
- [S34274] E-mails between Gillian Worden and Jan Cooper from 23 February 2022.