Kristin Bornholdt Collins read Medieval History and Classical Studies at the University of St Andrews, Scotland and holds an MPhil and PhD in Archaeology from the University of Cambridge. She specialises in Viking-Age numismatics, in particular coin finds from the Isle of Man and the economy of Dublin and the Irish Sea region. She is based in New Hampshire, USA, and is currently working on two volumes for the British Academy's Sylloge of Coins of the British Isles series (Isle of Man and Dublin).

Dot Boughton has been the Portable Antiquities' Scheme's Finds Liaison Officer for Cumbria and Lancashire since 2005. Previously, Dot studied Anglo-Saxon Archaeology at the Freie Universitaet Berlin and the University of Oxford, but she has now gone back to researching Britain's Early Iron Age socketed axes in her spare time. Her main area of expertise is Britain's Early Iron Age bronze artefacts, but in her everyday life as FLO she sees more Roman and medieval coins than socketed axes and Hallstatt razors. Even though Dot has recorded many medieval coins from Lancashire and Cumbria, she has seen only few coins dating from the early medieval period, i.e. the late 9th -11th centuries. The few early medieval coins from Lancashire and Cumbria include two very worn Northumbrian stycas, two pennies of Aethelred II and one penny of Edward the Confessor. However, in 2011 two Viking hoards (the Furness Hoard (Cumbria) and Silverdale Hoard (Lancashire)) were reported to her and she is currently liaising with the finders, landowners and the British Museum to see the two hoards through the Treasure process and aid -- hopefully -- with the acquisition by two local museums (the Dock Museum in Barrow-in-Furness, and Lancaster City Museum, Lancaster).

Ron Bude: I received a bachelor’s degree in chemical engineering at the University of Missouri in 1973, followed by graduation from medical school at the University of Illinois in 1977. After completion of a residency in radiology at the University of Michigan in 1981, I went into the private medical practice of radiology for 8 years before returning to academia where I then progressed the ranks to become a tenured professor of radiology at the University of Michigan in 2003. My medical research has mostly been in medical ultrasonography with concentration on the effects of vascular compliance and resistance upon the arterial waveform as detected by Doppler sonography. This Eadberht project represents my first major foray into numismatic research but I have tried to conduct this research using some of the same scientific principles that I have applied in my medical research. I think I have found out some interesting things and hope the audience agrees.

Florence Codine-Trécourt is a student at the Enssib, the French national school for library curators. Her MA consisted of a study of a collection of eletrotype copies of coins produced for the Exposition Universelle of Paris, 1900, and used to this day as a teaching instrument at the Ecole des chartes. Her thesis for the title of archiviste-paléographe concerned Merovingian non-monetary coin use, and more specifically centered on an in-depth study of pierced coins from French public collections or archeological surveys. She is currently an intern at the Bibliothèque nationale de France's Département des monnaies, médailles et antiques.

John Hines worked as a field archaeologist in England and Norway before taking a BA in English Language&  Literature and DPhil in Archaeology at Oxford. From 1983-97 he taught in the Dept/School of English in Cardiff and has been Professor in the Dept of Archaeology there since then. He is a former editor of Medieval Archaeology (1997-2006) and general editor of the monograph series Anglo-Saxon Studies for Boydell&  Brewer. His principal research interests lie in the interdisciplinary combination of archaeology, language and literature.

Stewart Lyon is a past President of the British Numismatic Society and also of the Institute of Actuaries. Over the last fifty-five years he has written numerous papers on Anglo-Saxon coinage, several of them in collaboration with other authors. The first, published in BNJ vol. 28, was 'A reappraisal of the sceatta and styca coinage of Northumbria'. His collection of Anglo-Saxon coins is deposited at the Fitzwilliam Museum on lifetime loan.

Rory Naismith is a Junior Research Fellow at Clare College, Cambridge. He completed a PhD on eighth- and ninth-century Anglo-Saxon coinage in 2009, now published as Money and Power in Anglo-Saxon England: the Southern English Kingdoms, 757-865 (Cambridge, 2011) and The Coinage of Southern England 796-865, 2 vols (London, 2011). Now working in the Department of Anglo-Saxon, Norse and Celtic in the University of Cambridge and the Department of Coins and Medals at the Fitzwilliam Museum, he studies aspects of economic, monetary and cultural history in Anglo-Saxon England and its neighbours.

Guillaume Sarah works at the CNRS (IRAMAT – Centre Ernest-Babelon) as a researcher specialising in ancient coin analysis. During his PhD, which he defended in 2008, he developed a new method for the characterization of ancient silver coins which allows determination of the complete composition of the coins with accuracy and precision. The application of this method to Carolingian coinage led to his interest in early medieval Frankish coinage. He also specialises in provenance studies of precious metals by the study of trace elements in monetary alloys and their lead isotope ratios, as the combination of these facts can be used to separate coins of different origin. The collection of Carolingian coins at the Cabinet des Médailles in Paris up to 864 has been fully analysed, and a catalogue is underway which will mention the precise composition of the coins as well as a revision of the traditional data.

Andrew Woods is a third year PhD student based in the Fitzwilliam Museum and Department of Archaeology at the University of Cambridge. He is working on a thesis entitled ‘Currency of the Ostmen: Money and Economy in Late Viking Age Ireland’ which considers coinage, economy and political authority in the period 1050-1170 AD.