Kirby's co-plot credit is widely acknowledged by Lee and Kirby in numerous interviews. Credit here reads: "Conceived, created, and carefully crafted by: Stan (The Man) Lee and Jack (King) Kirby."
Letters from Peter Marzano, David Fuchs, Walt Desmand, Steve Donaldson, H. R. Blanco Jr., Rusty Kirkland, Terry Levin, Mike Christiansen.
Includes "Know Ye These, the Hallowed Ranks of Marveldom”