This series focusses on the headmastership of Dr John Doncaster (1808-1846) and contains items created by the headmaster himself as well as items relating to the life at School in the early 19th century and Old Oakhamians, in particular James and Augustus Padley.

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.