ArcGIS shapefile of 3,316 polygons providing boundary and attribute data for the 2182 registration subdistricts of England and Wales as given in the 1851 census. These data derive from the 173 digital maps of the boundaries of English and Welsh parishes and their subdivisions produced by Roger Kain and Richard Oliver based on the listing in the 1851 census.These data were created as part of a research program directed by Leigh Shaw-Taylor and Tony Wrigley, which aims ultimately to reconstruct the evolution of the occupational structure of Britain from the late medieval period down to the early twentieth century.

These data derive from the 173 digital maps of the boundaries of English and Welsh parishes and their subdivisions produced by Roger Kain and Richard Oliver based on the listing in the 1851 census. The maps were subsequently converted into a single GIS by Burton et al. The GIS attribute data were checked, edited and enhanced with extra data from the census by Max Satchell, Tony Wrigley and a small army of research assistants with technical support from Peter Kitson and Gill Newton. Max Satchell checked and in some cases digitised GIS polygon data using a variety of cartographic and documentary sources. Of these the most important were digital scans of the Ordnance Survey first edition 1:2500 and 1:10560 maps from the Landmark Group distributed by Edina , the series of maps of registration districts and subdistricts boundaries prepared for the Registrar General prior to the censuses of 1861, 1871 and 1891 and the description of enumeration district boundaries given in the Census Enumerators Books for the censuses from 1851, 1861 and 1871. The 1:63,360 maps and Census Enumerators Books are held in The National Archives, Kew (TNA, RG 18/3-155, 198-227, HO 107, RG 9, RG 10).