Action Comics (1938) 289-A

"Superman's Super-Courtship" - - *Supergirl embarks on a campaign to see Superman happily married. Travelling into the past, she unsuccessfully attempts to interest him in Helen of Troy. Her similar effort in the future era of the Legion of Super-Heroes also fails, when she learns that Saturn Woman, the adult Saturn Girl, is already married to Lightning Man, the adult Lightning Lad.

Finally, she locates Superman's ideal mate on a distant world, where Luma Lynai, a superwoman who resembles Supergirl herself is an adult, falls in love with the Man of Steel. When it turns out that Luma Lynai cannot survive on Earth, however, the couple are forced to part, and Supergirl learns not to interfere in her cousin's love life. *Source: The Official Legion of Super-Heroes Index #1 - Published by ICG.

Also features the back-up story: "The Super-Practical Joker".