It's different in some minor particulars. It would be interesting to know why you think it better. Where did Dyer-Bennett get it from? What tune was it sung to? The DT file, sadly but typically, names no source of any kind and gives no music. The only "Risky Rob" variant I know of appeared in Lomax, Our Singing Country, but I don't have a copy, so I don't know if either of these derives from it.