Can you think of any super-heroes created in the 60s that didn't at some point have a regular home? That is, they -
- didn't have their own book (like Spider-Man, Batman, etc), or
- star in their own strip (like Supergirl in Action and Adventure, for example), or
- were a member of a super-team (like the Black Panther, Cyclops, or The Thing)
In the 1970s and afterwards, as literally hundreds of new characters debuted, lots of charcaters were seen infrequently, but I'm wracking my brain trying to think of someone who would have only been a guest star here and there. I'm sure I'm missing one or more head slapping obvious ones.
And in answer to the question, what about The Phantom Eagle in Marvel Superheroes?
Love the "sweetheart" title.
Hyperman, Hyperwoman, Hyperboy and Klypso the Hyperdog from Superboy #144.
Zatanna fits John's description until 1978, when she joined the JLA.
Lana in her identity of Gravity Girl from the Superboy story in Adventure Comics #285.
To correct a mistake I made: both stories in Adventure #384 featured Supergirl, Volar is from the first one.
Sunfire might qualify, depending on what John's looking for. He debuted in X-Men #64, which is cover-dated for Jan. 1970 and so will have appeared in late 1969. He joined the X-Men in Giant-Size X-Men #1 but left immediately, in X-Men #94.
Miss Liberty from Tomahawk, unless working with the Rangers (or being included by the Lord of Time in his team of heroes from the past in Justice League of America ##159-160) disqualifies her.