Barnes, Gerry, Saunders, Diane G.O. and Williamson, Tom (2020) Banishing barberry:The history of Berberis vulgaris prevalence and wheat stem rust incidence across Britain. Plant Pathology, 69 (7). pp. 1193-1202. ISSN 0032-0862
Gregory, Jon and Spooner, Sarah (2020) Mapping a Changing Landscape: Breckland c.1750-1920. Journal of Breckland Studies.
Rye, Eleanor and Williamson, Tom (2020) Naming early monasteries: The significance of Burh in East Anglia. Medieval Archaeology, 64 (2). pp. 226-243.
Williamson, Tom (2020) English orchards in history: production, aesthetics and myth. Studies in the History of Gardens & Designed Landscapes, 40 (3-4). pp. 197-215. ISSN 1460-1176
Williamson, Tom (2020) The Brown Business. In: Capability Brown, Royal Gardener. White Rose University Press, York, pp. 61-74. ISBN 978-1-912482-24-5
Williamson, Tom (2020) Humphry Repton:Landscape Design in an Age of Revolution. Reaktion Books, London. ISBN 9781789142990