Michael J. Allen is an environmental archaeologist and geoarchaeologist specialising in the archaeology of the chalklands. He has run Allen Environmental Archaeology for over 15 years, providing archaeological science and geoarchaeology to the university, research and commercial archaeological communities. He is a visiting research fellow at Bournemouth University and contributes to the lecturing of Applied Landscape Archaeology at University of Oxford (continuing education).
Niall Sharples is a professor at Cardiff University. He has excavated widely throughout Britain including in Shetland, Orkney, the Outer Hebrides, Dorset, Somerset and Glamorgan. His interests were originally focused on prehistory and he has written an important book on Social Relationship in Later Prehistory about the first millennium BC in Wessex, but recently his attention has been focused on the Norse settlement of the North Atlantic.