User blog comment:FairyRaven/Fairy Tail Chapter 426: Black Heart, Review and Commentary/@comment-4700320-20150402105124

But Mary's (Ice Trail) and Mary's (Avatar) names are written a bit differently in Japanese, aren't they? Mary from Avatar would be too young to be this Mary.

I personally think that Arlock is Jose because of all the PL references and the mask fits his face perfectly. He also got turned old/stone-like (at least his hair was bleached) after being hit by Fairy Law.