Welcome to the Worldwide Greathead family my One-Name Study - Sources
- [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.
- [S91] E-mails between Martin Raper and Jan Cooper from 8 December 2004.
- [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.
- [S229] Emails between Gill née Edmondson and Jan Cooper from 19 July 2008.
- [S290] E-mails between Greg McCann and Jan Cooper from 22 February 2010.
- [S399] E-mails between Bob Ellerton and Jan Cooper from 3 January 2014.
- [S400] E-mails between Nicholas Reid and Jan Cooper from 15 January 2017.
- [S508] E-mails between Debora Piercey and Jan Cooper from 28 April 2018 Descended from Anne Greathead and George Snowden via Dorothy and William Temple, and their eldest son George.
- [S3000] Emails between Joy Greathead and Jan Cooper 19 August 2004.
- [S5748] Letters between John Greathead and Jan Cooper from 15 July 1996.
- [S6025] Emails between Catherine Mooney and Jan Cooper from 2 June 2000 until she died.
- [S6124] Emails between Melvin Greathead and Jan Cooper from 15 May 2003.
- [S14185] Emails between John W Greathead and Jan Cooper from 2 July 2005.
- [S16084] Emails between Rick Temple and Jan Cooper from 11 February 2007.
- [S21091] Emails between Helen Harrison and Jan Cooper from 19 July 2008.
- [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.
- [S22774] E-mails between Carole Oliver and Jan Cooper from 16 August 2018.
- [S23508] E-mails between Stef Parry and Jan Cooper from 23 August 2009.
- [S26499] E-mails between Robert Connor and Jan Cooper from 5 February 2011.
- [S41820] US Census 1820 - 7 August 1820.
- [S41882] Canada Census 1881 - 4 April 1881.