- HEA - Headmasters
- HEA/8 - John David Buchanan
- HEA/8/2 - Correspondence
- 8 more...
- HEA/8/2/9 - A letter from John Buchanan to Old Oakhamians
- HEA/8/2/10 - A letter from John Buchanan to Old Oakhamians
- HEA/8/2/11 - Correspondence between John Buchanan and Rev Austin Boggis
- HEA/8/2/12 - Correspondence between John Buchanan and Desmond Mangham
- HEA/8/2/13 - A letter from John Buchanan to Old Oakhamians
- HEA/8/2/14 - Correspondence between John Buchanan and C.H. Gadney
- HEA/8/2/15 - Correspondence between John Buchanan and Alwyne Westmoreland
- HEA/8/2/16 - Correspondence between John Buchanan and Alwyne Westmoreland
- HEA/8/2/17 - A letter from John Buchanan to Sandy Thompson
