Sean McCarthy kept a pub near Clapham Junction in London in the mid sixties- he ran a folk club there for a while & I heard Jo-Ann Kelly do the guest slot there one night & recall him singing 'Step it out Mary' that night around 1965-

he also wrote/adapted ''Shanagolden' another big hit in Ireland. To an old tune I can't put a name to, but Johnny Mathis recorded 'Twelfth of Never' to the same tune