Leigh has a BA (Hons) in ancient history and archaeology from Nottingham University, a post-graduate diploma in practical archaeology from Oxford University, department of Extramural Studies, and over 25 years of experience in professional archaeology.

Head of the finds department at OA South since 1989, Leigh manages the processing, cataloguing,  short-term curation, and deposition of all finds assemblages from all sites excavated by OA South. She liaises with project managers, specialists both internal and external, conservators and landowners to ensure the efficient, cost effective and secure progress of the finds from excavation through to deposition.

Leigh also produces assessment and publication reports on late medieval/post-medieval metalwork, worked bone (of all periods) and Roman ceramic building material.

Natasha graduated with a BA (Hons) in Archaeology and Prehistory from the University of Sheffield, followed by an MSc in Osteology, Palaeopathology and Funerary Archaeology (University of Bradford). Natasha started her archaeological career at the Museum of London and now has almost 30 years of experience working in commercial archaeology. She has worked for various archaeological organisations in England, Italy and Norway as a digger, supervisor, project manager and osteologist, and has also been involved in research projects in Egypt and Abu Dhabi.

Natasha was the senior osteoarchaeologist at the Cambridge Archaeological Unit for 20 years before starting work with Oxford Archaeology in 2016 as Finds and Environmental Manager. She has an extensive knowledge of the archaeology of Eastern England, particularly of burial archaeology, and has studied and contributed to numerous publications on assemblages both small and large from all periods.

Natasha is responsible for co-ordinating the work programmes in both the finds and environmental departments at OA East and liaising with specialists within the organisation and externally. With her specialism in osteology she also contributes to the grey literature and publications programmes at OA and has a particular interest in Bronze Age and Iron age funerary practices. She teaches at the University of Cambridge and is a member of the British Association of Biological Anthropology and Osteoarchaeology (BABAO).