The papers consist of original documents accumulated by Sir Winston Churchill throughout his life (1874-1965). They have been divided into two sections: the Chartwell Papers (CHAR) and the Churchill Papers (CHUR). Together, the two sets of papers cover the following major areas:

Personal (CHAR 1 and CHUR 1), 1884-1965

The papers of Churchill as a private person. They include correspondence with or about his family and friends on non-public topics and papers relating to Churchill's personal, financial and legal affairs and his social life.

Public and Political: general (CHAR 2 and CHUR 2), 1898-1964

The papers relating to Churchill's activities as a person in public life other than his work as MP for a particular constituency or as a Minister. The content of these classes is very diverse and includes notes and correspondence with colleagues, acquaintances and the general public on topics of contemporary general interest, on party political matters, and on appointments to various positions. These classes also include papers relating to governmental business with which Churchill was not involved as a Minister or a member of the Cabinet.

Constituency (CHAR 3-CHAR 7, and CHUR 3), 1900-1964

These classes cover each of the constituencies represented by Churchill (Oldham, North-West Manchester, Dundee, Epping and Woodford). Each class contains correspondence and papers relating to local affairs generally, elections, meetings and speeches. There is correspondence with constituents on general political topics and about Churchill's actions on behalf of local interests.

Literary (CHAR 8 and CHUR 4), 1890-1965

These classes contain correspondence with publishers, editors and printers, and other correspondence in connection with Churchill's huge output of literary and journalistic work both during and after publication. The classes also contain material assembled for writing, notes and drafts, printer's copy, proofs and reviews.

Speeches (CHAR 9 and CHUR 5), 1897-1965

The papers in these classes are arranged (as far as possible) by particular speeches and include notes, drafts, speaking notes, press releases, press cuttings, extracts from Hansard (the parliamentary record of debates in the House of Commons) and printed material.

Official (CHAR 10-27, CHUR 6), 1902-1955

There is one class for each office held by Churchill. The departmental classes contain the correspondence, memoranda, prints, and other papers arising out of Churchill's activities as a Minister responsible for particular departments and include correspondence with colleagues, officials, acquaintances, and the general public.