"Draw your own conclusions. Mine would be that it was a production member's kid and they took the picture for kicks."
That's the problem, Therin.
Well, it wasn't a production person's set visit snaps. The child actor did exist. In my interview with Paul Winfield he discussed the child's appearance at the porthole, which "caused" Terrell (played by a white stuntman in blackface) to fall down a sand dune.