I was surfing around the internet on this blustery, rainy evening on the Eastern coast of the USA amid flood, storm and tornado watches, and found a link for a “Green Man Trail” in Oxfordshire, England: http://www.bejo.co.uk/greenmantrail/html/tradition.html
The site has an excellent trail of Green Man through Oxfordshire–history of the Green Man, historic sites, folklore, artists, and sightings of the Green Man in various neighborhoods. If you are in the area and find some interesting Green Men, contact: info@greenmantrail.com