RetaThe names Behan uses in verse 3 are quite authentic, alright. It's just that there's no other trace of those verses - and they are rarely sung. I think reading Dicey Riley/Reilly as a whore may be stretching things.
Fionn: In general Reilly is much more common than Riley in Ireland. As far as published versions of the song are concerned, - I'll need to check.
Regards