- HIS - History of the School
- HIS/1 - History of the School
- HIS/1/2 - John Barber and The Story of Oakham School
- HIS/1/2/4 - Correspondence
- HIS/1/2/4/1 - A card to John Barber
- HIS/1/2/4/2 - A card from Trevor to John Barber
- HIS/1/2/4/3 - Letters to John Barber
- HIS/1/2/4/4 - A letter from Nicholas Bomford to John Barber
- HIS/1/2/4/5 - A letter to John Barber
- HIS/1/2/4/6 - A letter from Sir Kenneth Lewis to John Barber
- HIS/1/2/4/7 - A letter from Simon Schanschieff to John Barber
- HIS/1/2/4/8 - A letter to John Barber
- HIS/1/2/4/9 - A letter from Michael McCrum to John Barber
- 41 more...