This is the name of a field on Chesworth Farm, near Horsham in Sussex. It might, of course, have been named after a previous owner; but I talked about it to Old MacDonald (who had a farm) and he suggested it could be a corruption of ‘bare lag’, meaning an unproductive field . . .
Was Jenny Bare Legs in her field, I should like to know?
“No, she wasn’t! Nor revealed was ankle, knee or toe.”
What, no bare leg here? No bare leg there?
“No, a lag, ’twas a lag;
Everywhere a bare lag!
Jenny Bare Lags, that’s this field, a field where things don’t grow!”