Of course it has! Many thanks for that additional set, Martin; I take it that it's unpublished prior to your PDF? I've made a midi from the notation you gave; the staff isn't entirely obvious in places, so if I've made any mistakes please do let me know and I'll modify it.
Sam Bennett probably didn't read the Journal (and was likely visited by Carpenter before the Spence/Foster set was published in any case) so it seems reasonable to consider his set to be a quite separate variant.