It depends if it's a book or the play. In the book, Joe is a minor character, equal with Amy Lawrence. In the show, he's one of the leads, right up with Huck Finn.
In Mark Twain's "The Adventures of Tom Sawyer," Huck Finn's pirate name is "Red-Handed Jack." Huck and Tom Sawyer create alter egos as they engage in imaginative adventures.
Tom's pirate name on Jackson Island is "Tom Sawyer, the Black Avenger of the Spanish Main".
In "The Adventures of Tom Sawyer," Joe Harper is one of Tom's closest friends who joins him in being pirates.
Tom Sawyer's middle name is "Sawyer."
Craig Sawyer's birth name is Craig E. Sawyer.
Diane Sawyer's birth name is Lila Diana Sawyer.
Sawyer Sweeten's birth name is Sawyer Storm Sweeten.
Sawyer Eason's birth name is William Sawyer Eason.
The Walrus.
The Adventures of Tom Sawyer by Mark Twain.
Clarence was reading Tom Sawyer. He gives this book to George at the end of the film.
Clyde Lynwood Sawyer's birth name is Clyde Lynwood Sawyer Jr..