This series focuses on the history of Oakham School Chapel and religious services at the school. Early records dating from 1846 to the present day, content includes sub series on services, ephemera, the choir, the organ, the Chapel council and the millennium celebrations.

A collection of the musical works, correspondence and ephemera of former Oakham Music Director Peter Witchell. This series contains an excellent collection of full and single instrument scores.

Material collected by Terrence Treanor throughout his time at Oakham School. Items include sheet music, orders of services, red books, Oakhamian magazines, photographs, registers, books and a school pin.

A collection of material from Anna Bentley's office including some school trophies, specially produced Oakham School dictionaries, entry books for the school, financial accounts, exam results, and correspondence. Most of the material in this collection relates to work completed in the marketing, administrative and foundation departments of the school.

This collection focuses on the administrative side of the school including admissions and trustees.

There is a rich collection of admissions books dating back to the 19th century alongside detailed notes of Trustees' committee minutes and development plans.

School inspections undertaken by external bodies are represented in this sub-fond and include some of the 19th century schemes which helped to found the school as one independent from Uppingham.

ADM/4 contains policy documents outlining the health and safety measures in the school.

This sub-fonds contains the complete collection of Red Books. These books contain a calendar of events for the upcoming term, lists of pupils and their houses, and lists of staff.

Stretching back to the headmastership of Dr. Doncaster, this collection comprehensively covers the correspondence, publications, photographs and other ephemera of the headmasters of Oakham School up to the present day. For many of the headmasters, correspondence and rolls calls are a significant theme in their series.

This collection also contains an excellent record of speeches and sermons given by G. Talbot Griffiths and John Buchanan.

The final series on reports covers the headmaster's, deputy headmaster's and registers writings on the state of the school, including topics such as building and estate development, admissions, the curriculum, examination results, and Old Oakhamians.

This collection charts the history and activities of the Old Oakhamian Club. It has excellent records of dinners and events thrown by the club such as reunions, international dinners and Oakham events. Most of the documents are administrative, but there are photographs and correspondence material too.

There are good records on the school's foundation and the club's golfing society. Most of the material has been produced by the Old Oakhamian club or the foundation. Thus, there is a good record of publications and marketing material relating to these events.

This collection covers the charity and outreach work undertaken by Oakham School's staff and pupils.

There are sub-series focusing on OSCA (the school's charity association), the Rutland Water Walk, Voluntary Action, and interaction with local prep schools.

Photographic and administrative material are particularly dominant in this sub-fonds.

A collection which charts the various societies and activities available to pupils at Oakham School. Documents include photographic records and correspondence for different societies. Topics include chess, CCF/OTC, scouts, Duke of Edinburgh Award, Oligoi , Exploratory Society, and trips and expeditions.

The multiple series contain administrative documents for the various societies and certain series, such as Duke of Edinburgh Award and CCF/OTC have excellent photographic record of formal or informal events.

There is a particularly detailed series on Chess and the event of Gary Kasparov's visit to the school.

There is a good collection of shooting medals and trophies, kindly donated by Henry Blagg.