1st appearance of Luma Lunai, an alien woman whose powers would not function under the yellow sun of Earth
In the story where Supergirl attempts to find a wife for Superman, he discloses to here that he would marry her if Earth's laws allowed cousins to be wed - tap cover and swipe to view panel
Unofficial appearance of Captain Marvel in DC Comics in the story 'Monkey's Paw'
The artist on this issue Kurt Schaffenberger was previously the artist on Captain Marvel (later Shazam) but lost his job after DC, National at the time, successfully sued Fawcett for copyright infringement which eventually led to the publisher to go bankrupt