In programs for the original run, the book was credited to John Gordon. The published script credits the authorship thus: "Music, lyrics and adaptation by Clark Gesner."
The published script contains this foreword:
"When Charlie Brown went into rehearsal on Feb. 10, 1967, there was no script. There were ten songs, a few long scenes, two producers, one small theare, one each of director, assistant director, writer, musical supervisor, lighting designer and scenic designer, ten years' worth of Charles Schulz's drawings, and one purpose. The purpose was to put 'Peanuts' onstage.
"When the show opened on March 7, 1967, there was still no script but 'Peanuts' was onstage, so nobody much cared. This published edition is, in effect, a description, written after the fact, of what finally wound up on that stage after everyone did the best he could in his particular department to accomplish that single purpose. If the play has managed to succeed, it stands as one more tribute to Charles M. Schulz's immensely human view of the world and his special ability to say it for all of us.
"The official credits for You're a Good Man, Charlie Brown list John Gordon as the author of the 'book.' That name is what might be called a collective pseudonym standing partly for myself, who set the words down, and partly for the people mentioned above, who created the event."
The foreword is signed "C.G."
Tams-Witmark, which licenses the show, credits the book to Gesner. We have decided to follow that choice and credit it to Gesner.