Welcome to the Worldwide Greathead family my One-Name Study - Sources
- [S78] E-mails between Lionel Benstead and Jan Cooper from 10 November 2004.
- [S116] E-mails between Neil Breasley and Jan Cooper from August 2005.
- [S179] E-mails between Martin Easterby and Jan Cooper from 7 January 2007.
- [S191] E-mails between Lynn Ralph née Baumann and Jan Cooper from 8 May 2007.
- [S205] Emails between Brian Benningfield and Jan Cooper from 15 May 2009.
- [S213] E-mails between Barbara Anderson and Jan Cooper from 4 January 2008.
- [S219] Emails between Trevor Spindler and Jan Cooper from 5 March 2008.
- [S226] Emails between Vyvyan Lord and Jan Cooper from 1 February 2008.
- [S251] Emails between Robert Kelso and Jan Cooper from 7 January 2009.
- [S253] Emails between C J Berens and Jan Cooper from 26 January 2009.
- [S288] E-mails between Jan van der Wal and Jan Cooper from 14 January 2010.
- [S303] Emails between Jill Innes and Jan Cooper from 20 August 2010.
- [S324] Emails between Margaret White and Jan Cooper from 30 January 2011.
- [S379] E-mails between Jan Cooper and Nicholas Strachan from 28 December 2014.
- [S388] E-mails between Tony Crilly and Jan Cooper from 4 November 2012.
- [S502] E-mails between Irene-Helen Forbes and Jan Cooper from 10 July 2008 title.
- [S2491] Emails between Colin Greathead and Jan Cooper from 7 January 2001.
- [S7532] Emails between Hannah Carlyn Jenkin and Jan Cooper from 27 August 2009 Sadly Audrey died in 2007.
- [S7795] Emails between Elizabeth Greathead and Jan Cooper from 2 March 2003.
- [S18933] Emails between Anthony Kevin Greathead and Jan Cooper from 1 January 2010.
- [S25307] Emails between Gillian Gane and Jan Cooper 31.7.1910.
- [S25617] Emails between Virginia Bird and Jan Cooper from 26 August 2010.
- [S25722] E-mails between Donna Lovegrove and Jan Cooper from 17 September 2010.
- [S31466] E-mails between Corey Baker and Jan Cooper from 10 May 2016.
- [S34769] E-mails between Prue Saunders and Jan Cooper from 14 July 2023.