This machine-readable version of John Williams' <i>Digest of Welsh Historical Statistics</i> is the result of a collaboration between the Statistical Directorate of the National Assembly for Wales, the History Data Service and the Centre for Data Digitisation and Analysis at Queen's University Belfast. John Williams' <i>Digest of Welsh Historical Statistics</i> is intended to provide a service for those working on the history of modern Wales. It arises from a belief that the quantitative element is a necessary and important part of the historical record; from an awareness that it was an aspect that was particularly inaccessible for scholars of Welsh history; and from a conviction that some encouragement in the use of quantitative material was necessary. It is modelled on the two volumes dedicated to British historical statistics: Mitchell, B.R. and Deane, P. (1962) <i>Abstract of British historical statistics</i> and Mitchell, B.R. and Jones, H.G. (1971) <i>Second abstract of British historical statistics</i>. Crops. Acreage 1867-1974 Acreage by county, 1867-1972 Numbers of livestock, 1913-1974 Numbers of livestock by county, 1867-1972 Estimated production of principal crops, 1885-1974 Estimated yields of principal crops, 1885-1974 Size of agricultural holdings 1875-1974 and percentage of holding and acreage owned by occupiers, by county, 1887-19 70 Size of agricultural holdings, by county, 1875-1974 Numbers of workers employed on agricultural holdings, 1921-1974 Numbers of workers employed on agricultural holdings, by county, 1921-1974 Prices. Annual averages for wheat, barley and oats in selected markets 1794-1920; meat prices at Bangor, 1828-1907; salt butter at Carmarthen, 1811-1913 Agricultural machinery, 1942-1972 Number of producers and sales through marketing scheme, 1934-1974 Fishing. Landings at Welsh ports: quantity and value, 1886-1974 Forestry. Woodland area, 1924 and 1938-1975 Please note: this study does not include information on named individuals and would therefore not be useful for personal family history research.