The Hill "Abduction" -- Morphing Details?

While skimming Patrick Huyghe's The Field Guide to Extraterrestrials, with illustrations by Harry Trumbore [Avon Books, NY, 1996], I came across the précis of the 1961 Betty/Barney Hill abduction taken from John Fuller's The Interrupted Journey [Dial Press, NY, 1966].

I had, from an earlier reading, yellow-penciled this:

"... Betty remembered large noses and black hair" on the aliens who, allegedly, took her and Barney aboard their craft. [Page 30]

Then this:

"Barney recalled that the leader wore a cap and black scarf over the shoulder." [Pages 30/31]

Illustrated by Mr. Trumbore, thusly....

Now I ask, when did the alien descriptions morph into little grey beings, with bald heads, no hair, and slits for the nostrils?

Yes, Barney attributed slits for the nose (nostrils) and no hair on the beings that supposedly kidnapped him and Betty, but his description is befunked by the cap and scarf designations.

We've dealt with the Jimmy Durante nose description by Betty earlier here, when I suggested that the Hills may have been confronted by rednecks in a truck who closed in on them and engaged in harassment (or worse), presenting a traumatic event that the Hills repressed and reconfigured under hypnosis -- creating the story that has come down to us as an extraterrestrial abduction.

The large nose, black hair, cap and scarf are details that have been suppressed or changed by ufologists, but remain clues to what actually happened to Betty and Barney Hill.

Those details mitigate the alien/extraterrestrial aspect of the Hill tale, but the UFO-ET crowd has eschewed them.

RR