Derwent Rural District
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It was abolished in 1974 under the Local Government Act 1972, going on to form part of the district of Selby of North Yorkshire. Several parishes in the area were transferred from Selby to the City of York in 1996.
- "Relationships / unit history of Derwent RD". A Vision of Britain Through Time. Great Britain Historical GIS Project. Retrieved 2009-07-23.
- Great Britain Historical GIS / University of Portsmouth, Derwent RD (historic map). Retrieved 2009-07-24.