Quote Originally Posted by Prime32 View Post
Old man = 3rd Hokage. 4th Hokage = Naruto's father. The 3rd came out of retirement when the 4th died.

And the 3rd did use clones to seal Orochimaru's zombie summons, which is mentioned on the page I linked.
yeah just caught that on a reread. Well I don't know anything about the 4th Hokage, but that link did mention that the technique would get the users soul so it would eliminate the 4th hokage as well.