Scope and Contents Papers on Sir Winston Churchill, Admiral Hugh Sinclair [Quex Sinclair], and Alexander Denniston, mainly concerning recruitment for Room 40 [of the Old Building of the Admiralty] and the Government Code and Cypher School at Bletchley Park. With typescript copy of a talk by Mavis Batey on British intelligence, for a living history tour of Oxfordshire. Also includes transcript of a letter from Alfred Dillwyn "Dilly" Knox to Denniston, and report on correspondence between Mavis Batey and Gillian...

Scope and Contents

This collection consists of letters and accounts of Denniston's code-breaking work in Naval Intelligence in both World Wars and of the setting up of Room 40. There are several photographs of Denniston in Naval uniform and some of the Royal Naval College at Osborne.