Professor David John Mabberley, is a British-born botanist, educator and writer. Among his varied scientific interests is the taxonomy of tropical plants, especially trees of the families Labiatae, Meliaceae and Rutaceae. He is perhaps best known for his plant dictionary The plant-book. A portable dictionary of the vascular plants. The third edition was published in 2008 as Mabberley's Plant-book, for which he was awarded the Engler Medal in Silver in 2009. As of June 2017 Mabberley's Plant-book is in its fourth edition.

Tetbury is a town and civil parish inside the Cotswold district in Gloucestershire, England. It lies on the site of an ancient hill fort, on which an Anglo-Saxon monastery was founded, probably by Ine of Wessex, in 681. The population of the parish was 5,250 in the 2001 census, increasing to 5,472 at the 2011 census. The population further increased to 6,453 in the 2021 Census.