Larry Jordan was a law clerk turned assistant district attorney who keyed in on a cool gimmick to fight crime. Creating devices allowing him to tap into radio frequencies to ferret out crime, as well as technology allowing him to skate on power lines, as the Air Wave he was a cutting edge crimefighter of Earth-Two. He eventually gained the attention of the All-Star Squadron, which recruited him into their ranks.
Eventually, Larry along with other All-Stars were banished to Earth-One by Mekanique when both worlds were merging during the Crisis on Infinite Earths. On that world, his heroic career was short lived, as he met some kin folk on this new world with the same last name, and married one them in Helen Jordan. Together, they had a son named Hal after her grandfather. Then, while trying to stop a burglar in his own home as a civilian, Larry was killed. It was left to his wife to avenge his death as the second Air Wave. Her career was even shorter still.
Little Hal Jordan grew up and assumed the alias his father and mother used before him, utilizing a special helmet allowing him to ride electrical currents as an energy being, and aiding Helen's cousin Hal aka Green Lantern and other members of the Justice League.