Harvard University Library has digitised and made openly available archives relating to the Harvard Expedition to Samaria, led by American archaeologist George Andrew Reisner, between 1908 and 1910. The archives include Reisner's diaries from the period, and diaries from a few of his colleagues, including Gottlieb Schumacher, 
David Gordon Lyon, and Clarence Stanley Fisher.

Scope: diaries, photographs, expedition admin documents
Reisner diaries 1909-10
Fisher journal 1908
Lyon diary 1908-11
Schumacher diary 1908
Schumacher Report 1908
Expedition summary 1909
Harvard expedition to Samaria notebook 1910
Antiquities Register
Accounts Book
Photographs list
Expedition correspondence 1901-9
​
Further Reading 
AWOL, 2014. Harvard Expedition to Samaria 1908-10. Ancient World Online.

Summary by Juliette Desplat (Head, Modern Overseas, Intelligence and Security Records, The National Archives)

The National Archives (TNA) is a government department and an executive agency of the Department of Culture, Media and Sport. TNA is the official archive and publisher for UK central government, and for England and Wales. It is the agency which collects and secures the future of the government record, both digital and physical, to preserve it for generations to come, and to make it as accessible and available as possible.
 
Scope of collections:
The National Archives holds the records of the central government. As archaeology and (geo)politics have always had close links, a lot of material relates to archaeological matters. The main collections to consider are the records of the Foreign Office, Colonial Office, Foreign and Commonwealth Office, War Office, Admiralty, Air Ministry, Works Department and Treasury, as well as discreet collections of maps and photographs.

These contain correspondence and minutes, memoranda and reports, treaties, pieces of legislation (antiquities laws and concessions), press cuttings, maps, sketches and photographs. The occasional excavation diary can also be found, along with information on archaeologists in their dealings with the government (notably military intelligence).
 
Website: www.nationalarchives.gov.uk
Twitter: @UKNatArchives
Blog: http://blog.nationalarchives.gov.uk/ or http://blog.nationalarchives.gov.uk/blog/author/jdesplat/
Flickr: https://www.flickr.com/photos/nationalarchives
 
Relevant Contacts:
Dr Juliette Desplat – Head, Modern Overseas, Intelligence and Security Records.

Summary by Amara Thornton, with additional information from Felicity Cobbing, Palestine Exploration Fund

Established in London in 1865 to undertake exploration and excavation in the Levant. Archives relate to PEF field work (including the Survey of Western Palestine and excavations at numerous archaeological sites including Jerusalem, Tel el Hesi, Gezer, and Samaria), the history, monuments/structures, cultures and natural history of the Levant, and PEF administration. Also includes archives relating to the British School of Archaeology in Jerusalem, John Garstang’s excavations at Jericho, Olga Tufnell, and Hilma Granqvist.  The PEF also has a substantial Library, open to members, of works on Levant archaeology, history, natural history, culture, languages, literature and travel.

Scope of collections:
Field notes, letters, drawings and paintings, architectural plans and surveys, photographs, maps, administrative archives, ephemera, archives relating to the Fund's journal Palestine Exploration Fund Quarterly Statement. Also archaeological & ethnographic objects, casts & models, scientific equipment & natural history specimens.

Website: www.pef.org.uk
Twitter: @PalExFund
Blog: www.pef.org.uk/blog
Flickr: ​www.flickr.com/photos/palestineexplorationfund/

Relevant contacts:
Felicity Cobbing, Executive Secretary and Curator

Further Reading
Cobbing, F. 2002. The Cedric Norman Johns archive in the collections of the Palestine Exploration Fund. Palestine Exploration Quarterly 134 (2): 169-172.

Cobbing, F. 2003. The Dickenson and Langley photographic archives: two new collections at the Palestine Exploration Fund. Palestine Exploration Quarterly 135 (2): 131-134.

Cobbing, F. 2012. Thomas Cook and the Palestine Exploration Fund. Public Archaeology 11 (4): 179-194.

Cobbing, F. 2017. The Palestine Exploration Fund: the collections of a learned society in London. Journal of Eastern Mediterranean Archaeology and Heritage Studies 5 (1) :75-86.

Davis, T. 2004. Shifting Sands: the rise and fall of biblical archaeology. Oxford: Oxford University Press.

Gibson, S. 1999. British archaeological institutions in Mandatory Palestine, 1917-1948. Palestine Exploration Quarterly 131 (2): 115-143.

Moscrop, J. 1999. Measuring Jerusalem: the Palestine Exploration Fund and British Interests in the Holy Land. London: Leicester University Press.

Silberman, N. 1982. Digging for God and Country. New York: Knopf.

Thornton, A. 2009. Archaeological Training in Mandate Palestine: the BSAJ Minute books at the PEF. PEF Features. [Online].

Summary by Amara Thornton

Established in 1937 in London to provide specialist training in archaeology.  Originally a separate insitution within the University of London, the Institute of Archaeology merged with UCL in the 1980s.  The UCL Institute of Archaeology has a large collection of archaeological archives, and is particularly strong in representing British archaeologists working in the Middle East in the early 20th century.  

Scope of Collection:
Field notes, photographs, correspondence, diaries, manuscript drafts, ephemera, films.

Relevant Links:
Institute of Archaeology archives page
www.filmingantiquity.com
Photographs of archaeological sites in British Mandate Transjordan and Palestine (Horsfield archive) via Micropasts Flickr

Relevant Contacts:
Ian Carroll, Collections Manager

Further Reading:
Moshenska, G., Schadla-Hall, T. 2011. Mortimer Wheeler’s Theatre of the Past. Public Archaeology, 10 (1): 46-55. doi:10.1179/175355311X12991501673221

Sparks, R.T., Laidlaw, S. 2007. A Future for the Past: Petrie's Palestinian Collection. Dorcester Dorset: Henry Ling.

Sparks, R.T. 2014. Near Eastern encounters: the collections and archives of the Institute of Archaeology, UCL. In The Forgotten Kingdom. Past and Present Excavations at Tell Atchana/Alalakh. Koc University Press.

Sparks, R.T. 2013. Publicising Petrie: Financing fieldwork in British Mandate Palestine (1926-1938). Present Pasts, 5 (1), 2. doi:10.5334/pp.56

Thornton, A. 2016. GL Harding Presents Digging in Palestine - Archaeology on Film. British Archaeology, 149: 38-43.

Thornton, A. 2014. The Nobody: Exploring Archaeological Identity with George Horsfield (1882-1956). Archaeology International 17: 137-156. doi:10.5334/ai.1720

Thornton, A., Perry, S. 2011. Collection and Production: The History of the Institute of Archaeology through Photography. Archaeology International 13 (0), doi:10.5334/ai.1319