Collection comprises correspondence with Philip Hammersley Leathes, manuscript papers, diaries, devotionals, dictionaries and pedigree rolls, title deeds and indentures, printed books and pamphlets, catalogues and the manuscripts of the architect, John Carter, [1350-1863]. Notably including correspondence from George Nayler of the College of Arms and Nicholas Carlisle, Secretary of the Society of Antiquaries, relating to publications of the Society, discoveries of antique brass plate, and the exchange of manuscripts between antiquaries, [1790-1838]; loose manuscript papers collected by Leathes, describing ornamentation in early printed devotionals, a fictional narrative entitled 'The amorous Jill: A tale', narrative of the Lisbon earthquake of 1755, notes relating to the observation of comets, including the comet of 1811, copies of charters of the reigns of Edward IV and Henry VII, papers relating to the Portland Vase, British Museum, fragments describing inscription on newly discovered brass plate, 1747-1829; pedigree rolls tracing the lineage of the English Crown, [1450, 1762]; manuscript volumes including collection of biblical extracts, liturgical handbook, autograph book with colour illustrations, antiquarian ephemera such as funeral memorials, armorials and the creation of nobles, volume by Francis Harrison entitled, 'The elements of navigation' with colour charts, tables and illustrations, dictionaries of Celtic and Saxon words, notes on the teaching of mathematics, commonplace book drawing on ancient and modern authors, manuscript diary including progress of architectural tour of Europe; title deeds and indentures for families in Nottingham, Southampton, London and Hungerford, residency certificates in Buckinghamshire and Northamptonshire, 1650-1751; printed books and pamphlets on the subjects of antiquarianism, genealogy and architecture, 1778-1853; manuscripts of John Carter, architect, acquired at his death in 1817 by his executor, Leathes, notably including autobiographical notebooks by Carter describing architectural subjects and tours, commonplace book, correspondence with Leathes, loose notes on linguistics and the ships of the Russia Company, obituaries of Carter and sale catalogue from his estate, 1700-1818; manuscript catalogues and display captions relating to the Leathes' papers, King's College London, 1819, 1837.

Papers of Alexander Van Millingen on history, architecture and archaeology, c1870s-c1900s (mostly undated), relating mainly to Constantinople and Byzantium but also to Biblical history, Greek and Roman history, history of philosophy and religion, early church history, and history of art, and including manuscript notes (some in notebooks), manuscript and typescript drafts, news cuttings, sketches, transcriptions and rubbings of inscriptions, and a few items of personal material, notably financial accounts and address books; photographs (some labelled as unpublished), plate proofs and sketches of buildings and monuments, and reproductions of inscriptions, including the walls of Constantinople and churches including Saint Eirene, Theodore, Theodosia, Sergios and Bacchos, Peter and Mark, Andrew in Krisis, Ioannes in Troullos, Christos in Chora, and Pantokrator (some items are endorsed with notes); photograph album of people and places in France, Germany, Italy, Austria, England, Montenegro, India, Tunis and Malta, 1889-1895 (where dated); plans of buildings, comprising the Egyptian obelisk in the Hippodrome, Constantinople, and the churches Saint Mary Mouchliotissa, Thekla, Mary Panachrantos, Peter and Mark, Mary Diaconissa, Theodosia, Saviour Pantepoptes, Theodore Thetiro, Mary Pammakaristos, John the Baptist of the Studion, the Church of the Myrelaion, the Monastir Mesjedi, the Refectory of the Monastery of Manuel, the Bogdan Serai, the Sanjakdar Mesjedi, and the Balaban Aga Mesjedi.

Papers of Edgar Prestage, 1881-1949, largely relating to his work on the history of Portugal, 16th-19th centuries. Letters to Prestage from various correspondents, 1886-1948 and undated, relate to a variety of subjects pertaining to his work, publications and translations, sources and interpretation, and also to acquaintances and contemporaries, other publications, and some personal matters such as correspondents' health and families, and include six letters from Fortunato de Almeida, 1917-1933 and undated; 24 letters from Joao Lucio de Azevedo, 1914-1933 and undated; 13 letters from Pedro Augusto de S Bartolomeu de Azevedo, 1910-1927 and undated; six letters from Henrique de Gama Barros, 1908-1925; five letters from Carlos Roma du Bocage, 1915-1918; three letters from Sir Richard Francis Burton, 1888-1889, and 12 letters from Lady Isabel Burton, 1894-1896, relating to Sir Richard's translation of Camoens; 22 letters from Julio de Castilho, 1908-1918; nine letters from Harold Castle, 1903-1906; six letters from Fidelino de Figueiredo, 1911-1918 and undated; eight letters from James Fitzmaurice-Kelly, 1905-1919; five letters from Anselmo Braamcamp Freire, 1905-1919; two letters from Pieter Geyl, 1923, 1926; letter from William Ewart Gladstone, 1893, congratulating Prestage on Letters of a Portuguese nun ; ten letters from Edward Heawood, 1922-1933; letter from Benjamin Jowett, 1887, explaining entrance examinations at Oxford; five letters from Margery Lane, 1927 and undated; six letters from Manuel de Oliveira Lima, 1910-1927; two letters, 1928, 1932, from Manuel II, King of Portugal, concerning the monarch's bibliography of early Portuguese books; eight letters from Jacinto Octavio Picon, 1911-1920; seven letters from Jacinto Inacio de Brito Rebelo, 1895-1908; eight letters from Jaime Batalha Reis, 1894-1896, 1904-1905, 1922; 12 letters from Francisco Rodrigues, 1913-1918, 1930 and undated; two letters from John Ruskin, 1886 and undated, on the study of architecture; seven letters from Antonio Maria Jose de Melo Cesar e Meneses, 5th Conde de Sabugosa, 1905-1913; five letters from Luis Teixeira de Sampayo, 1921-1928; letter from Herbert Louis Samuel, 1st Viscount Samuel, 1905, congratulating Prestage on Eca de Queiroz's The sweet miracle ; five letters from Georg Schurhammer, 1930-1936; five letters from Wilhelm Storck, 1894-1895; five letters from Herbert Thurston, 1905-1913; ten letters from Pedro Tovar de Lemos, 2nd Conde de Tovar, 1916-1927 and undated; 13 letters from Carolina Michaelis de Vasconcellos, 1895-1896, 1907-1922, and 11 letters from her husband, Joaquim de Vasconcellos, 1897, 1908-1925; six letters from Afonso Lopes Vieira, 1910, 1914, 1927 and undated; five letters from Tomas Maria de Almeida Manuel de Vilhena, 8th Conde de Vila Flor, 1925-1929 and undated; letter from Oscar O'Flahertie Wills Wilde, [1892], regretting he cannot send a copy of his unnamed play (perhaps Lady Windermere's Fan ) as it has not yet been published. There is also a letter of 1881 from Antonio Candido Goncalves Crespo to Maria Amalia Vaz de Carvalho (father and mother of Prestage's wife). Ephemera includes signatures of Gomes Eannes Azurara, William Wordsworth, [? Isaac] Disraeli and Samuel Wilberforce; Christmas cards; the visiting card of S T P Kruger, President of the Transvaal Republic, 1903; menus, including the House of Commons Coronation luncheon in Westminster Hall, 1902; a ticket to the coronation of Edward VII, 1902; and an invitation to a party at Windsor Castle, 1912. Otherwise the collection comprises research notes and transcriptions on various subjects and sources, including Restoration period Portugal; Sousa Coutinho; Portuguese in Africa, Brazil and Asia; the War of the Spanish Succession; 17th century Portuguese history, including diplomacy; the sermons of Father Antonio Vieira SJ; Portuguese bibliographies prepared by Prestage; annotated typescripts on the Portuguese in Abyssinia down to 1543, aspects and results of Portuguese colonisation, and Portuguese reminiscences (1948); Prestage's 'The Mode of Government in Portugal during the Restoration Period'; photographs of Portuguese fortresses in Morocco; notebook on 'Analyse das "Cartas Familiares" '; copies of letters of F de Sousa, including his embassies to France and Rome; copies of letters of Sir R Southwell, English ambassador to Lisbon; material relating to relations between Spain and Portugal; pamphlets and articles of Prestage; proofs for a chapter entitled 'L'Intevention Anglaise dans la Peninsule Iberique', in an envelope addressed to Prestage and labelled 'D Fernando & the Holy See by E Perroy'.

Eight series of records relating to administration, finance, estates and special purposes, including papers relating to Secretaries' and Bursars' general correspondence, 1872-1953, 1977-1982, notably including Royal patronage of King's College London, 1901-1911; Indian students, 1906-1922, 1948; appeals by King's College London for endowments and funds, 1872-1907; exhibitions, 1897-1912, 1977-1979; gift of Holbein prints, 1921-1934; the King George III collection of mechanical models and scientific instruments, 1926-1977; Royal visits, 1955-1959, 1978; opening of the new Strand building, 1970-1972; King's College London Annual Dinner Committee minutes and accounts, 1875-1876, 1896-1920; Fellows of King's College London, 1896-1916, 1961-1983; representation of King's College London on the governing bodies of various schools and colleges, 1952-1983, the City Parochial Foundation, 1941-1983, and St Mary-le-Strand Charity, 1923-1985 (KAS/AD1). Annual statements of accounts including departments, 1828-1980; final accounts and reports, 1910-1959; assets and liabilities annual statements, 1833-1853; copy documents of the Royal warrant and grant, charter and various acts, 1829-1906; funds and appeals accounts with lists of donors, 1895-1928, correspondence and working papers relating to financial reorganisation, 1896, 1905-1906; estimates and revised estimates with reports, 1910-1960, printed accounts, abstracts and reports, 1910-1959; Theological Department final accounts and estimates, 1926-1960; Quinquennium reports, grants, estimates and related papers, 1910-1935, 1946-1952, 1974-1975; special apparatus accounts and correspondence, 1920-1952; accounts and correspondence relating to the separation of King's College School, King's College Hospital and Strand School from King's College London, 1908-1911; correspondence and papers relating to non-recurrent, capital and block grants, 1947-1951, 1965-1982; report on the merger of King's College London, Queen Elizabeth College and Chelsea College, 1984; correspondence concerning loans, debts, income tax, insurance, investments, and departmental expenditure, 1897-1981; trust deeds, correspondence and reports relating to the Staff and College retirement funds and superannuation schemes, 1898-1923, 1930-1931, 1948-1953, 1971-1985 (KAS/AD2). Title deeds and correspondence relating to the advowson of West Barkworth, Lincolnshire, 1750-1957, the benefice of Westmill in Hertfordshire, 1901-1985, and the benefice of Bolney in Sussex, 1957-1968; Building Extension fund donations, 1881-1896, 1907-1910; Agreements, leases, plans, correspondence and reports relating to the letting, purchase, alteration and refurbishment of buildings, 1892-1987, notably laboratories, 1898-1915, 1945-1952, 1960-1966; establishment of the Architectural Museum, 1896-1897; repairs and maintenance of the College organ, 1910-1911, 1929-1932, 1974-1976; various Strand buildings, 1907-1920, 1935-1945; properties in Bristol, 1939-1942; chapel alterations, 1930-1935, 1946-1948; inventories of departmental apparatus 1906-1968; war damage, 1945-1952; Accommodation Committee minutes and correspondence, 1948-1987; development of 62-68 Half Moon Lane site, London (Botany and Zoology departments), 1950-1968; Planning and Steering Committees and various subcommittees minutes and papers, 1954-1969; development of King's College London Quadrilateral (Strand site) correspondence, papers, plans and Subcommittee minutes, 1954-1976; alterations to Medical Faculty Building minutes and papers, 1960-1979; correspondence with the National Trust concerning the Roman Bath, 1962-1974; campaign to acquire the East wing of Somerset House public access, 1963-1976 (KAS/AD3). Correspondence, minutes, plans, accounts and inventories relating to the establishment, running and development of King's College London's hostels for students, 1902-1982, notably King's College Hall, 1910-1982, including use by the RAF, 1940-1946; King's College Hostel, Vincent Square, London, 1908-1982, including use as a military hospital during World War One, 1914-1919, and air raid warden station during World War Two, 1939-1942; Halliday Hall, London, formerly Montrose Court Hotel, 1949-1976; Women's Hostel, Queensborough Terrace, London, 1920-1946, Theological Hostel, 42-43 Mecklenburgh Square, London, 1902-1908 (KAS/AD4). Correspondence and papers relating to Service Units and functions, 1966-1977, notably the Animal Unit, 1966-1981, Boat House, 1926-1947; establishment and development of the Computer Unit, 1964-1983; Dining Hall/Catering Department/Refectory Committee 1889-1920, 1942-1983; Rogate Field Centre near Midhurst, Sussex, 1965-1982; Safety Committees, 1957-1982 (KAS/AD5). Papers, relating to personnel including appointments, salaries, sabbatical leave, training, student demonstrations, negotiating, staffing and consultative committees, overall policy and welfare, 1895-1924, 1931, 1938-1939, 1944-1991, notably Advisory Committees on Academic, Clerical, Technical and Manual Staff, 1952-1986; Association of University Teachers Committees, 1938-1939, 1952-1985; various staff appointments and retirements including the Principal, the Dean, and Chairs and Established Readerships, 1895-1920, 1944, 1947-1952, 1956-1991 (KAS/AD6). Papers relating to the Union of Students notably grants, student discipline, clubs, welfare and day nursery, 1898-1922, 1948-1983 (KAS/AD7). Papers relating to World War One, notably research work and munition training to support the war effort, 1914-1921; war memorials, 1918-1941, 1950-1952, 1972-1983; Mitcham Sports Ground, 1919-1931, 1968-1975; emergency arrangements made by King's College London during World War Two 1938-1948; Fire and air raid precautions, 1938-1945; staff and students deferral of National Service 1939-1956; Centenary committees and appeal, 1927-1933; 150th Anniversary celebrations 1975-1981; Development Trust programme 1978-1984 (KAS/AD8).

Papers of and relating to Evelyn Underhill, 1874-1997 and undated, comprising personal correspondence of and concerning Underhill, 1888-1969 and undated, the correspondents including Baron Friedrich von Hugel (three letters, 1911-1916), Underhill's husband Hubert Stuart Moore (117 letters from Underhill to Moore, 1890-1912 and undated, and 30 letters from Moore to Underhill, 1898-1906 and undated), Rabindranath Tagore (typed transcripts of 10 letters from Underhill to Tagore, 1913-1914), and members of the Underhill family, the subjects ranging from Catholicism, travels in Italy, Switzerland and France, publications and lectures, spiritual matters and advice, mysticism, health, and World War Two; correspondence, 1907-[1954], with various publishers concerning Underhill's publications (some posthumous) and broadcasts, including copyright, costs, sales and royalties; manuscripts and typescripts containing proposed holiday itineraries and recording Underhill's impressions while travelling in Italy, Switzerland and France, 1898-1899, 1901-1907; poetry, 1917-1923 and undated, including some work which was published; a speech at King's College London on being elected a Fellow, 1927; an article on 'The Fountain of Life: an iconographical study', published in 1910; material relating to spiritual development, 1921-1939, mainly under the guidance of Baron Friedrich Von Hugel and including transcripts of his letters, 1921-1924, and other items on spiritual advice, confessions, goals and progress; papers relating to retreats and religious writings, 1924-1932 and undated, including notebooks and texts of addresses; printed material by and concerning Underhill, 1926-1941, 1990, including some of her publications; press cuttings, 1891-1949, mainly reviews of Underhill's work but also including early published pieces; sketchbooks and drawings, 1892-1911 and undated, including sketches and watercolours of marine scenes in Britain, ecclesiastical subjects, and Italian and French architecture; photographs, c1925-c1930s and undated, including a photograph and negatives of Underhill (one at Pleshey), a portrait of Baron Von Hugel, marine views, and views of French and Italian castles and towns; material relating to the Underhill family, 1874-1940, including the marriage certificate of Evelyn Underhill's parents, 1874, a family tree, c1891, a copy of Evelyn Underhill's will, 1940, and details of books in Dr Williams's Library, London, which originated from Underhill's library; obituaries of and articles about Underhill, 1941-1997, including theses, bibliographies, memoirs, biographical material and reflections on her work; newsletters of the Evelyn Underhill Association, 1992-1997.