This is the best-known one from my area, Pittsburgh; warning, there is a photo inside that some may find disturbing as it is about a real person and why he became part of the legend.
Apparently the reason his legend is so widespread is because of all the wars over the last century; his story got told and retold so often, it was like a game of Telephone.
Raymond Robinson (Green Man) - Wikipedia, the free encyclopedia
And behold, he is real.
I KNOW THE PIECES FIT, CAUSE I WATCHED THEM FALL AWAY, MILDEWED AND SMOLDERING.
FUNDAMENTAL DIFFERING, PURE INTENTION JUXTAPOSED WILL SET TWO LOVERS' SOULS IN MOTION.
DISINTEGRATING AS IT GOES, TESTING OUR COMMNICATION.
THE LIGHT THAT FUELED OUR FIRE THEN HAS BURNED A HOLE BETWEEN US SO WE CANNOT SEE TO REACH AN END...