The National Archives will take charge of the UK's archive sector following the winding up of the Museums, Libraries and Archives council (MLA).

BBC: Leadership role for The National Archives

In addition to the bulging electronic archive, workers also have to handle the more traditional papers that presidential libraries have dealt in since 1939, when Franklin D.

WSJ: Email Trove Is Big Job for Bush Library

Papers from the archive of poet Cecil Day-Lewis have been donated to Oxford University's Bodleian Libraries by his actor son Daniel and daughter Tamasin.

BBC: Cecil Day-Lewis

But he also procured images with a more commercial appeal when he acquired the libraries and freelance contracts of 11 photo agencies, as well as the renowned Bettmann Archive, a collection of historical photos frequently used by book and magazine publishers.

FORBES: Image Enhancement

So far, the National Archive has gone through 45%, or some 315 million pages, of all the papers housed in presidential libraries, with about 385 million remaining.

WSJ: Email Trove Is Big Job for Bush Library