These data were collected as part of a research project run by Dr Leigh Shaw-Taylor and Professor E.A. Wrigley and funded by the Economic and Social Research Council: Male occupational structure and economic growth in England 1750-1851 (RES-000-23-0131). The aim of this project was to reconstruct the evolution of England's male occupational structure from c.1750 to 1851. The underlying aim was to improve our understanding of the industrial revolution. The results of the project have not, at the time of writing, been published. This study contains one file, pst_occ_code_1851.txt featuring a look-up table for an occupational coding scheme Primary, Secondary, Tertiary (PST) developed by E.A. Wrigley. This look-up table can be used to code three other related data collections into PST: These collections are: SN 5431 - 1851 Census Report: County Occupational Data (already available) SN 5432 - 1851 Census Report Principal Towns Occupational Data (This study will not be released until July 2008) SN 5433 - 1851 Census Report Registration District Occupational Codes (This study will not be released until July 2008) Please note: this study does not include information on named individuals and would therefore not be useful for personal family history research.