I doubt if it would be traditional, and I don't know where an "Isobella" might come into it; the originator of the Dole was Lady Mabella de Tichborne, according to the story. There were a lot of topical -and ephemeral- broadside songs on the business of the Tichborne Claimant, of course, but that's quite another matter.

Can you get your friend to quote a little of what he does remember? You haven't really given us a lot to go on so far.