....and, like Dolphin, they didn't have too many appearances back in the day, but were gems in the making (well, some more than others...).
So, let's dig into more Silver Age characters of yesteryear....
Calvin "Cave" Carson started his spelunking in Brave and the Bold #31 (August-September, 1960 by France Herron and Bruno Premiani), being contacted to investigate the disappearances of a radio tower and some freight trains and find "The Secret Beneath The Earth". Cave goes to investigate, while his friends, Bulldozer Smith and Christine Madison, finish work on Cave's Mighty Mole (a machine which would allow the team to tunnel underground). Getting a message to his team via balloon, Christine and Bulldozer take the Mighty Mole underground to rescue Cave from the magnetic monster responsible for the chaos, starting a series of adventures inside Earth.
The team had been fracturing, and when we next see Cave Carson, in Action Comics #536 (October, 1982, by Marv Wolfman and Joe Staton), Cave has become a recluse, grown a beard, and doesn't want to use the Mighty Mole to help people (but Lois Lane and the Omega Men convince him to help Superman against the Mole).
...and then facing a "Rain of Fire", with a sculptor who uses a golden metal to turn people into statues.
...and June encountered the Dzamor, who told her to state the name, "Enchantress", which allowed June to become the supernatural super-heroine and defeat the evil of the castle (and then change back to June, to leave the party with Alan, who had no idea of the Enchantress' true identity...).
the Wizard in Crisis On Infinite Earths #12 (March, 1986, by Marv Wolfman and George Perez, and also featured many of the Forgotten Heroes, like Rip Hunter and Dolphin, along with Animal Man and more in space fighting Brainiac), and was soon after recruited by Amanda Waller to work for her Task Force X along side Deadshot, Captain Boomerang and Bronze Tiger during the Legends six issue mini-series of 1986 and 1987 (making her and Rick Flag teammates, after being on opposite sides before....).
Still have a few more Forgotten Heroes to cover, so don't forget to come back!