Jetta Raye's life in the 21st century played out, for three Standard Comics issues (#5-7) of Jetta between late 1952 and mid-1953. The "Sweetheart of the 21st century" who roamed the halls of Neutron High School was created by the late Dan DeCarlo [who famously drew Betty & Veronica and the other Riverdale teens of Archie Comics for decades].
Jetta's "future" was the typical, highly-stylized one that was prominent in the 1950's. Clanky robots, flying cars, jetpacks, television phones, etc. were all the rage for Jetta and her pals.
Bill Morrison of Bongo Comics has also recently painted over an original DeCarlo Jetta cover for a reprint collection of the original stories.