1) The villain Prof. Doom is incorrectly called Dr. Doom on the cover. 2) Captain Marvel has blonde hair on the cover but red hair inside.
Lambiek Comiclopedia (https://www.lambiek.net/artists/f/francho_leon.htm) suggests that Francho was probably the Argentine artist Arnoldo Franchioni, who often used the penname "Francho."
Introducing Prof. Doom and B.I.R.D. (Bureau of International Revolutionary Devices). Captain Marvel first called Prof. Roger Winkle of Dartmoor University. Marvel first wears a mask. Winkle first meets and dates Linda Knowles. 15-year-old Billy is first called Billy Baxton. Nick Caputo suspects that Carl Burgos may have provided layouts for Hubbell.
Lambiek Comiclopedia (https://www.lambiek.net/artists/f/francho_leon.htm) suggests that Francho was probably the Argentine artist Arnoldo Franchioni, who often used the penname "Francho."
Lambiek Comiclopedia (https://www.lambiek.net/artists/f/francho_leon.htm) suggests that Francho was probably the Argentine artist Arnoldo Franchioni, who often used the penname "Francho."
Elasticman takes the identity of James Goode, a new student at Dartmoor University.