This sub-series focuses on Sargants house daily running and administration since its opening in 1959. The sub-series contains a single item so far.

A house diary for Johnsons House, from Winter term 1961 to Winter term 1974, recording house officials, house teams and results, and achievements of individual boys.

This sub-series focusses on various administrative documents of the 21 Club.

This series focuses on Peterborough House pupils and staff since its inception in 1966. Most of the series is made of house photographs, house magazines from the 1970s and various administrative documents.

This series relates to the history of the Duke of Edinburgh's Award Scheme at Oakham School since 1973. Most of the collection focusses on the 1000th Gold Award celebrations in 2000 and the visit of Prince Philip.

This series relates to Junior Day girls of Ancaster. The house was built in 1974, as part of the new Jerwoods Campus for the Lower School. Most of the collection is made of the House photographs since the first year of Ancaster, as well as informal photograph of the girls in house events and sports competition.

This sub-series focusses on various documents related to the everyday life in Peterborough House, such as reports on epidemics and discipline cards.

This series focuses on Talbots House pupils and staff. Talbots was a Day Girls' house from 1972 to 1997 when the girls were transferred to Gunthorpe and Hambleton. Most of the series is made of photographs, house photographs as well as more informal photographs.

This series relates to the history of Oakham School Exploration Society since its inception in Spring term 1978 until 1998. Most of the collection is made of expedition diaries and reports.

This sub-series relates to various administrative documents of the Exploration Society, such as the Society's diary and invitations to lectures. The sub-series spans from 1978 to 1998.