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.

Research material on some soldiers and their family, most notably the Neilson brothers and the Sills family.

A collection of material which focuses on Old Oakhamians who fell in the First World War, containing personal and family items and research.

This series relates to the history of Oakham School Army, Naval and Air Force contingents since 1910, and of the Boy Scouts. Most of the collection is made of photographs from the mid-20th century.

This sub-series relates to the history of the Cadets at Oakham School since 1910. The bulk of the collection is made of photographs of inspection throughout the 20th century.

An album containing photographs of the O.T.C. and C.C.F. at Oakham School. Some names are written next to the corresponding photographs. Topics include inspections, First World War Cuttings, Jubilee Parades, Armistice Day, Drums, Proclamation of King George VI, demonstrations of arms, letters and newspaper clippings.

A bound copy of several Oakhamian Magazines from 1911 to 1919.

This file focusses on photographs of various Inspections of the Cadets and contingents, as well as group photographs of full contingents since the early 20th century.

Old Oakhamian Calendar, published in 1921. Cover with contents: Editorial; Members of the Old Oakhamian Club - 1920; Letter from the Headmaster with plan; Old Oakhamian Notes; Old Boys' Matches. Six double-pages A to F.

A large print out of a photograph of Lt Douglas Herbert Washington Humfrey in a trench on the Western front during the First World War.