This series focuses on School House pupils and staff in the 20th century. Most of the series is made of house photographs, various informal photographs as well as records books and punishment books.

This sub-series focusses on various photographs of the pupils and staff of School House as well as various documents related to the history of the house.

This file focusses on various documents relating to the history of the C.C.F. and the School Cadets, which do not fit in any other theme file.

Two lists of Commanding Officers and Officers of the O.T.C., J.T.C and C.C.F. since 1910, with names, ranks, and dates. Two pages A and B.

A School list of staff and pupils for the Summer term 1915. Contents: Trustees; Teachers; Forms VI to I; Honours List; List of Exhibitions and Prizes gained during the year; Royal Drawing Society.

Photo albums and scrapbooks compiled by members of staff throughout the years.

Old Oakhamian Calendar, published in 1924. Cover with contents: Editorial; List of Addresses of Members of the Old Oakhamian Club - 1924; Meeting of Old Oakhamian Club; Old Oakhamian Luncheon; A Letter from the Headmaster; Cambridge Letter; Officers' Training Corps; A Weekend in Africa; Births, Deaths and Marriages; Old Oakhamian Matches; School Staff - September 1924. Nine double-pages A to I.

Old Oakhamian Calendar, published in 1927. Cover with contents: Frontispiece; Editorial; Names and Addresses of Members of the Old Oakhamian Club; Annual Dinners; Presentation to Mr J.C. Clark; The Headmaster's Letter; Cambridge Letter; Review of School Games, 1924-1927; Mr J.C. Clark's Trip to Canada; Births, Deaths and Marriages; Old Oakhamian Notes; Cricket and Football Matches; School Staff - September 1927. Thirteen double-pages A to M.

Old Oakhamian Calendar, published in 1930. Cover with contents: Frontispiece; Editorial; Names and Addresses of Members; Annual Dinners; Headmaster's Letter; Mr J. Story's Letter; Quinquennial Luncheon and Meeting; Resignation of Mr W.L. Sargant - An Appreciation; The Captain of the Ship; Presentation to Mr W.L. Sargant; Cambridge Letter; The Book of Oakham School and The Register; Births, Marriages and Deaths; Cricket, Football and Shooting Matches; The Golfing Society; Club Notices; School Staff. Eighteen double-pages A to R.

A series of letters and documents related to Dr Thomas Orme, Headmaster of Oakham School between 1778 and 1796.