Clance's style of drawing comic books looks far more like the 1980's than the 1940's.
The Wizard of Oz was not showing in Racine or anywhere else in 1943. After its initial run in 1939 (it could not be held over - there was more MGM product where that came from), it was not re-released until 1949.
Clance goes on a rant about the plot of The Wizard of Oz, saying that Dorothy killed the Wicked Witch of the East. However, Dorothy did not pick up her house and throw it into Oz, a tornado did; she was merely a passenger.