Papers primarily relate to Wilcox's time in Germany and Russia and mainly consist of typescripts (some annotated/edited) and offprints of articles published in contemporary journals. These include, for example, versions of a series of articles on Kerensky and Korniloff from the Fortnightly Review (September 1918-January 1919) and the subject's response. There is also a large collection of foreign-language articles and pamphlets (some by Wilcox), including B.V. Savinkov's Za rodinu i svobodu (Warsaw, 1920). Also included is a series of typed primary sources (speeches/statements), primarily relating to the Kerensku-Korniloff affair. There is some correspondence, most significantly a series of letters from Edmund Clerihew Bentley written from the Daily News and, later, the Daily Telegraph (1908-1923). Bentley was a journalist, author of Trent's Last Case, and inventor of the clerihew poem, and remained in contact with Wilcox for many years, although there are no extant letters later than 1923. Also included are a number of letters from Irene Ward, MP, and a small collection of family correspondence. Papers also include collections relating to Wilcox's personal and family life. These include a large collection of photographs, a small collection of articles and pamphlets in areas of interest and bills and receipts relating to the last years of Wilcox's life in Newcastle upon Tyne.

Consists of letters and documents covering the life and work of Sir Lawrence, primarily relating to his time working for the Royal Air Force during World War I and World War II.

Consists of fifteen diaries of William Brewis of Mitford, and two items of contemporary published material relating to the diaries.

There is one diary for every year between January 1833 and January 1850, aside from 1835, 1836 and 1844. These provide a first-hand account of rural life in the Morpeth and Ponteland districts, as Brewis describes visits to hiring fairs and markets, current sale prices for crops and animals, and farms available to rent. He also regularly observes weather conditions, which were unusually severe between 1837 and 1855 due to the advance of Icelandic glaciers, and their effect on the growing seasons and harvests. Brewis remarks on how his farm is affected by a ‘distemper’ amongst the livestock, similar in nature to an outbreak of foot and mouth disease, as well as his own illness during the outbreak of influenza in 1837.

Brewis documents dining with leading members of the community and gives an insight into the relationships between farmers, local landowners and businesses in the area. His diaries make note of events in the local community including the execution of Ralph Joyce, a 24 year old man charged with the murder of his own father who was hung in Morpeth gaol in 1846.

Like many other farmers of the time, Brewis took a keen interest in national and international news. In his diaries he notes and makes frequent comments on national political and societal events. These include the death of King William IV, whom Brewis was fond of, and the marriage of Queen Victoria and Prince Albert, whom Brewis often criticised. There are also entries on Chartism and the Chartist rising in Newport led by John Frost, as well as notes on India and the war against the Sikhs in April 1846.

The Local Illustrations date from the Eighteenth and Nineteenth Centuries and depict a variety of local scenes and structures, such as schools, hospitals, residences, castles and churches. There are views of Newcastle, Durham, Northumberland, Sunderland; portraits; depictions of local life (keelmen playing cards) and a plan of the Grainger Market, Newcastle.

Consists of the professional and personal papers of Professor Frederick Charles Pybus. This also includes papers regarding his rare books and manuscripts collection.

This archive includes content accumulated and created by both Charles and Mary, and other family members. It reflects the family's personal activities from Charles' childhood in the 1870s to Mary's death in 1966, but also includes some content from Charles' professional life. It can support research into a broad variety of areas, including political history (particularly the Liberal and Labour parties, socialism and international relations), World War I (particularly dissent and the peace movement), childhood and education (from both a personal and political perspective), domesticity, class and landed estates.
This extensive personal archive is mostly comprised of correspondence. This includes: Correspondence to Charles in his role as MP Correspondence to and from Charles relating to the operation of the Union of Democratic Control Correspondence to and from Charles relating to his positions in government Correspondence relating to the management of the Wallington estate and the donation to the National Trust Correspondence between members of the Trevelyan and Bell families, much of which is domestic in tone Correspondence to and from Charles and Mary's children from their early childhood to adulthood Correspondence from visits abroad including North America, Australia, New Zealand, the Middle East, Russia and Germany The correspondents include family members such as Charles' brothers George Macaulay Trevelyan and Robert Calverley Trevelyan, Mary's sister and brother in law Elsa Richmond and Admiral Sir Herbert William Richmond. Other correspondents include Sir Winston Churchill, J Ramsay MacDonald, E D Morel, Arthur Ponsonby, Walter Runciman, Herbert Samuel, George Bernard Shaw and Jennie Lee.

Other documents include: Papers relating to Charles, Mary and their childrens' educations, including exam papers and school ephemera Personal Diaries, in particular a short run of Mary's personal diaries as a young woman Official political papers, including Cabinet Conclusions, draft bills[?] and copies of Hansard Pamphlets and leaflets written by and collected by Charles, many relating to socialism and the UDC Transcripts of speeches given by Charles and Mary in professional and personal capacities Personal notebooks with draft speeches and essays Family photograph albums and glass negatives, recording family events, daily life, and Charles' political career Press cuttings and scrapbooks relating to family events and Charles' career

The archive mainly comprises correspondence relating to Charles' activities as a Civil Servant and administrator. There are also publications relating to these activities and Charles' wider interests.

There is also personal content, including travel diaries, family correspondence and papers regarding inheritance of the Wallington estate in Northumberland.

The medical tracts contain a series of 129 bound volumes of pamphlets relating to medical matters. These matters include, but are not limited to, addresses from the Royal College of Physicians, along with new research and hypotheses about ailments, symptoms, consequences and cures. There is also a small collection of 'History of Medicine' quarterly magazines, and the occasional instance of a stand alone pamphlet, such as 'Four Centuries of Anatomy,' by Frederick Pybus, A professional biography of William Harvey, and the '1st spasmodic cholera epidemic in York,' published by the Borthwick Institute, York.

The White Collection, named after Robert White (1802-1874) was presented to King's College (now Newcastle University) by his great nephew George White Pickering. It is a rich source of literature as well as being strong in ecclesiastical and local history such as James Raine's writings on local history and antiquities.

There are works by John Dryden, William Hazlitt, Thomas Hood, James Thomson, Robert Burns, Mark Akenside, Thomas Chatterton, John Gay, H.W. Longfellow, Matthew Prior, John Keats, John Milton, James Hogg, John Clare, Edgar Allan Poe, George Herbert, William Cowper, Thomas Gray and the poems of Ossian as well as several works by S.T. Coleridge, including Aids to reflection (1848), Biographia literaria (1817), Confessions of an inquiring spirit (1849) and The friend (1850). Alongside the work of these distinguished authors sit English and Scottish ballads, garlands and chapbooks including some which were printed in Newcastle.

The Robert Spence Watson Collection is a collection of 500 volumes on the subject of English literature, consisting largely of the publications of literary societies such as the Shakespeare Society, the Spenser Society, the Ballad Society and the Chaucer Society, presented to the Library in 1908 by Robert Spence Watson, who was also one of the founders of the Durham College of Physical Science, and President of Armstrong College.