^ a bGreat Britain Historical GIS Project. "Widnes MB: Area (acres)". A Vision of Britain through Time. University of Portsmouth. Retrieved 22 January 2022.
^Young, Robert. "Pre-1974 Civic Heraldry of Lancashire". Civic Heraldry of England and Wales. Retrieved 22 January 2022.
^"Cheshire Historic Towns Survey – Widnes Archaeological Assessment" (PDF). Cheshire County Council and English Heritage. Retrieved 18 January 2022.