Julie Harold provides a lot of genealogical data about the Harrolds on her site:
www.highfields1.plus.com/harold/harold.html

Readers interested in finding out more about the Sheffield Flood 1864 will find this site very interesting:
www.mick-armitage.shef.ac.uk/sheffield/flood.html

Newspaper reports of the Flood can be found at:
www.rotherhamweb.co.uk/h/extracts/flood.htm

There is a Brief Guide to Bradfield on:
www.sandersonbradfieldandbeyond.co.uk/abrief.htm