Inks credit of John Forte from Bob Bailey via comment attached to a posting on the Facebook page Curt Swan Appreciation Page on 10 July 2021. Was previously and tentatively credited to "George Klein ?". Per Bob, "After Ray Burnley (Jack’s brother) retired Mort hired John Forte to ink Curt which he did from about 1959-1961."
Letters from: Victor Russo, Pat Butler, Sonja Robl, Bill Owens, Betsy Kogan, Michael Valor, and Evan Hicks.