I had dozens of those balsa wood gliders in the '50's.
I just wish somebody had told me they could really break the ice with chicks. That kid's wingman is gonna lose out - big time.

From the expression on his face, I think our pilot has gotten his first inkling that girls may not have cooties. after all. His wingman, at the rear, may be trying to horn in on his action

It looks like there are actually 3 couples... if you look carefully, you can see part of a third boy's head behind the center boy. But where is his body? I finally figured out that the girl on the left is sitting on his lap, so there's not much of him that's visible. It's possible those are his fingertips on her side, but they also might be hers, awkwardly positioned. You can also see the legs and lap of a third girl on the far left.

It was just thirty years previous that Lewis Hines was photographing children in this same valley -- but they were working in the mills instead of playing outside of them.