Thanks Mick, you're a star. I've never come across the song before, even though I live near Howden. Seems that whoever wrote it, coming from t'other side of the Humber, had a pretty poor opinion of the fair and I have to wonder why he came - maybe to sample the delights of the 20 inns, more per sqare yard than any town in England, so I'm told!

Thanks again for your help.