In the comics
As a child of the 1950s, it's a treat for me to see the old comics, with the large panels and fine draftsmanship. Some don't hold up terribly well but others remain classics, like "Li'l Abner," which has been featuring a bald female spy named "Jewel Brynner."
You asked for Brenda Starr, here she is, from Sept. 29, 1957:
And Al Capp's parody of Milton Caniff's "Steve Canyon":