During the Bronze Age of the seventies through the early eighties, Power Girl played the role of the Supergirl of Earth-Two, adventuring with the Justice Society of America and adopting the secret identity of Karen Starr, computer programmer. When the aging Superman of Earth-Two retired, Power Girl took his place as an official member of the JSA. Her closest friend was the Huntress, who on Earth-Two was the daughter of Batman and Catwoman (mirroring the friendship between Supergirl and Batgirl (Barbara Gordon). Power Girl first encountered Earth-One in Justice League of America #147, and found that in many ways she actually preferred that reality to her own.