I just had this from Neil (RoughRider)
Here are quotes from a Peter Bogdanovich interview with John Wayne that shows he was actually on the set of Up the River. This adds credence to the still of what could be Wayne in the background:
A funny thing happened with Ford after The Big Trail. He was a strange character, you know. After I did that picture, I came back, and he was making Up the River. I went over and said, “Hi, coach.” Nothing. I thought he didn’t hear me. So I figured, Oh, well, he didn’t even see me. The next time I saw him I went, “Hi, coach, hi.” And again I didn’t get anything. So the next time I just went right up in front of him and went, “Hi, coach.” And he turned and talked to somebody else. I thought, That’s that — he won’t speak to me. I don’t know how the hell I can communicate.
About two years later, I was in Catalina with Ward, having a belt, and Barbara [Ford], his daughter — she was a little girl then — she ran in and said, ‘Daddy wants to see you.” I said, “Whoa, wait a minute, Barbara, you got the wrong boy — must be Ward.” She said, “No, it’s you, Duke.” So I said, “Yeah, honey, run along, you know this is a bar.” So his wife, Mary Ford, came to the door and she said, “Duke, come here. Jack is expecting you out there.” I said, “All right.” So I went out to the Araner, his boat, and I go aboard — I remember Jim Tully was there and four or five guys — and Jack was in the middle of a goddamn story, and he looked up at me and said, “Hi, Duke, sit down.” And to this goddamn day I don’t know why he didn’t speak to me for two years.
I found this while visiting this website: <http://www.sheilaomalley.com/?p=38180>