1. Independent Scholar , Greenhead, Brampton, Northumberland CA8 7HX, UK
2. Department of Archaeology, Durham University , Dawson Building, South Road , Durham DH1 3LE, UK
3. Department of Gynaecology, North Cumbria Integrated Care NHS Foundation Trust , Cumbria CA2 7HY, UK
4. Department of Anthropology, Durham University , Dawson Building, South Road , Durham DH1 3LE, UK