The Enfield Poltergeist: A Family Haunted

https://en.wikipedia.org/wiki/Enfield_poltergeist
https://www.spr.ac.uk/about-spr
https://en.wikipedia.org/wiki/Maurice_Grosse
http://www.xenophon.org.uk/billwilkins.html
https://www.ghostclub.org.uk/grosse_obit.html
Documentary: The Enfield Poltergeist. Aired, 2007 on Channel 4 in the UK
The Enfield Poltergeist and Reunion episodes: BBC Radio 4 https://www.bbc.co.uk/programmes/p0641x05