- NIDS: Units 101-2
- File
National Inventory of Documentary Sources in the United Kingdom and Ireland (NIDS), units 101-2: Hull Record Office (0.029.247-80); University of Birmingham (0.109.172-229); Modern Records Centre, University of Warwick (0.033.183-7); Anglesey Record Office (0.130.159-74);West Yorkshire Archive Service, Calderdale (0.132.001-205).