Yes, it was; and so was Davy Lowston. In the case of 'The Bloody Gardener' at least, there was a good bit of Lloyd in it; but copyright here will be in that particular form of the song, of course, not a claim to have to written the whole thing. You had to do that sort of thing in those days in order to make sure that any royalty went to you rather than somebody who had had nothing to do with it.

A friend of mine once conscientiously checked the copyright details for 'Reynardine' (most people just assume it's public domain and don't bother to check when they record an arrangement of it) and found Lloyd's name on that, too; again with some real justification as it turns out.