Stock Footage of Alan Shepard in The Right Stuff?

In The Right Stuff (1983) lots of stock footage is used. There's one scene in particular that I'm pretty sure uses stock footage. But I'd like a confirmation. It's the scene when Alan Shepard is about to board the capsule and NASA engineers are watching him and clapping. Shepard looks up at the capsule and gives a thumbs up sign. Then he takes the elevator up and boards the craft. This capture is an example of what I think is stock footage.

The following is definitely not stock footage. It's a capture of the heavy handed character of the Minister, played by Royal Dano. The scene would have been much better served without these Dano inserts.