I believe I have this solved...you see, Redundant is an anagram of Darned Nut, which Mince most certainly was. It is also an anagram of And Turned...and as we all know, Mince was once someone, "and turned" at some point into someone else, that someone else being An End Turd (can you see the evidence building?). Final nail in the coffin...Redundant is also an anagram of Darted Nun, a famous Scottish hunting "game", long since driven underground and known only to exist to an elite few.
My conclusion...Mince is Roger Kettle.