On page 272 - 274 of "The Interrupted Journey", this exchange occurs in which Betty describes the "leader and the "examiners" interest in the color of the Hills skin.
Dr. Simon: Why this unusual interest in your skin? Do you have any thoughts about it?
Betty: No. I don't.
Dr. Simon: Do you think it might be because your skin and Barney's were of a different color?
Betty: I don't know, but I think they were interested because their skin and mine were different.
Dr. Simon: In what way different?
Betty: In color
Dr. Simon: What was the color of their skin? Were they different, these men examining you?
Betty: The Leader and Examiner were more alike.
Dr. Simon: In what way?
Betty: They looked taller than the crew members.
Dr. Simon: That's all?
Betty: They were taller and there skin was a different color.
Dr. Simon: Well, what was the difference in color? What was the color of the crewmembers skin?
Betty: Uh--
Dr. Simon: Why do you have so much trouble telling me the difference?
Betty:Because I keep thinking the crewmembers are Oriental, Asiatic. Only because they were not as---they're short.
Dr. Simon: And the leader is not short?
Betty: He's more, the Leader and the Examiner are taller. They're about as tall as I am.
Dr. Simon: You mean the crewmembers are much shorter than you?
Betty: The crewmembers are shorter.
Dr. Simon: How much shorter?
Betty: I'd say they were not -uh - five feet. I think the leader is about as tall as I am.
Dr. Simon: You were afraid of these people?
Betty: I wasn't afraid of the Leader. I was at first, but I wasn't afterward.
In this passage, Betty makes a definite distinction between the Leader and the Examiner and the rest of the crew. Both in skin color and in physical stature. And if the Leader and the Examiner did not appear "Oriental", as Betty described, then what did they look like? Barney provides a description early on in the encounter. These passages can be found on pages 89-92. I include here only the descriptive questions and answers.
Dr. Simon: Your clear now, relaxed.
Barney: It's still there.
(As if an idea stikes him) If I let my binoculars fall and dangle from my neck-- and start over again, maybe it won't be there.
(Resigned, as he seems to go through this maneuver, a magical defense ritual, like crossing his fingers. )
But it is.
(Now with incredulity.) Why? What do they want? What do they want? One person looks friendly to me. He's friendly looking. And he's looking at me...over his right shoulder. And he's smiling. But...but...
Dr. Simon: Could you see him clearly?
Barney: Yes, I could.
Dr. Simon: What was his face like?
Barney: It was round.
( Pauses for a moment, then : ) I think of--Ithink of--- A red-headed Irishman. I dont' know why.
( Another pause, then: ) I think I know why. Because I rish are usually hostile to Negroes. And when I see a friendly Irish person, I react to him by thinking--I will be friendly. And I think the one looking over his shoulder is friendly.
Dr. Simon: You say looking over his shoulder. Was he facing away from you?
Barney: Yes. He was facing a wall.
Dr. Simon: You saw him through this window? You said there was a row of windows?
Barney: (He takes care to be extremely precise.) There was a row of windows. A huge row of windows. Only divided by struts - or structures that prevented it from being one solid window. Or then---it would have been one solid window. And the evil face on the---
( He starts to say Leader.) He looks like a German Nazi. He's a Nazi.
( There is a questioning tone in his voice.)
Dr. Simon: He's a Nazi. did he have on a uniform?
Barney: Yes
Dr. Simon: What kind of uniform?
Barney: ( With a small amount of surprise.) He had a black scarf around his neck, dangling over his left shoulder.
Dr. Simon: ( Another sharp probe.) How could you see the figures so clearly at that distance?
Barney: I was looking at them with binoculars.
Dr. Simon: Oh. Did they have faces like other people? You said one was like a red-headed Irishman.
Barney: ( Describing the scene very slowly and carefully.) His eyes were slanted. Oh-- his eyes were slanted!. But not like a Chinese-- Oh. Oh.
Dr. Simon: What was Betty doing all this time?
Barney: I can't hear her.
Dr. Simon: Did you make an outcry to her like you did to me?
Barney: I-I can't remember--I don't know.
Dr. Simon: You would remember if you did.
Barney: ( His thoughts seem to be on the craft, and not on the Doctor.) I did not. I know this creature is telling me something.
Dr. Simon: Telling you something? How? How is it getting to you?
Barney: I can see it in his face. No, his lips are not moving.
Dr. Simon: Go on. He's telling you something. What did he tell you?
Barney: Stay there--and just keep looking. Just keep looking--and stay there. and just keep looking. Just keep looking.
Dr. Simon: Could you hear him tell you?
Barney: Oh! I got the binoculars away from my eyes. 'Cause if I don't, I'll just stand there.
Dr. Simon: Did you hear him tell you this?
Barney: Oh, no. He didn't say it. ( More tremor in his voice. )
Dr. Simon: You felt he said it?
Barney: I know.
Dr. Simon: You know he said it?
Barney: Yes. "Just stay there", he said.
( Now his voice breaks in extreme terror. ) It's pounding in my head!!
( He screams again. ) I gotta get away, I gotta get away from here!
Dr. Simon: All right. All right. calm down.
Barney: ( Still breathless. ) Gotta get away.
Dr. Simon: Calm down. How can you be sure he was telling you this?
Barney: ( He speaks now with awe.) His eyes! . His eyes. . I've never seen eyes like that.
Dr. Simon: You said they were friendly.
Barney: Not the Leader's. I said the one looking over his shoulder.
Dr. Simon: How did you know the other one was the Leader.
Barney: ( In careful level tones again. ) Because everybody moved - everybody was standing there looking at me. But everybody moved. These levers that were in the back....or they went to a big board, it looked like a board. And only this one, with the black, black shiny jacket and the scarf stayed at the window.
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It's important to understand that the discrepancy in the description of the beings the Hills encountered is basically because their were two different types involved and working together. At least that's how I read it.