Dell's one-shot The Twist (July-Sept/62), riding the coattails of the dance craze, was written by Paul C. Ignizio. That attribution comes from Martin Grams Jr.'s book on "Car 54, Where Are You"; Ignizio wrote to the producers with a sample of his writing, the Dell tie-in to that show, and mentioned The Twist as another Dell he'd written. Mark Evanier's mention of that on his blog brought Ignizio to indexers' attention.
The artist of The Twist
has gone misidentified, but he sneaked in
versions of his name twice.
The interior art has gone misidentified because the cover artist signed
his work. "Williams" is, I'd agree with the Grand Comics Database, Bill Williams. But he no
more drew the insides here than Gil Kane drew every Marvel in the early
The artist with this style in 1962 used it on other Dells like The
Griffith Show and Margie.
He's Henry Scarpelli. (The GCD currently attributes Margie's art correctly but gives credit for Andy Griffith's to Bill Fraccio.)
A few years later Scarpelli would change his approach somewhat, using photo-reference stats on books such as McHale's
Navy, something that he didn't use on those 1962 ones. After that, the deluge, as he refined the cartoonier style of
his syndicated panel TV Tee-Hees.
He set the Archie-like template for DC's teen books with covers and,
generally with others penciling
the interiors, inks. (I was surprised to find that he used
his more "realistic" style at DC first, on Stanley
and His Monster.)