Marvel Family of Earth-S
From superman.nu: Supermanica
also known as the Shazam! Family
The Marvel Family is made up of Captain Marvel, Captain Marvel Jr, Mary Marvel, Uncle Marvel, and Hoppy the Marvel Bunny.
(DCCP No.34, June 1981 "The Beast-Man That Shouted "Hate" at the Heart of the U.N.!")
(DCCPA No.3, 1984 "With One Magic Word")