Newspaper clipping, circa late 1940s. 13-year-old schoolboy Clark Trammell at the Cascade Plunge in Birmingham, Alabama. Interesting history of this now-defunct swimming pool: https://www.bhamwiki.com/w/Cascade_Plunge
And here's a couple pictures from that Bhamwiki article:
In this 1940s picture, you can see the same building in the background as in the Clark picture!