As Guest Austin Polard said in 2001, it was written by Bob Gale. He was part of a group from Beaminster called The Dumpledors (Dorset dialect for 'Bumblebee') and he/they would sing it at Dorchester Folk Club (weekly,Thursdays)in the mid 60s. The Yetties were frequent visitors to Dorchester (as were we - their club and ours were both on Fridays) and the song quickly became popular within the county. It didn't take long for it to be exported to other parts.