Before being abducted by the TVA, Casey had been known as Frank Lee Morris, one of the inmates who escaped from Alcatraz prison in 1962.

Source: https://screenrant.com/star-trek-rutherford-eugene-cordero-marvel-loki/

Hot dog vendors in front of the Alcatraz ferry terminal at Pier 33. Nov. 9, 2023.

Source: https://missionlocal.org/2023/11/sf-push-to-scare-bacon-wrapped-hot-dog-buyers-reeks-of-desperation-and-rotting-meat/

San Francisco seen from Alcatraz.

Source: https://www.counterpunch.org/2023/03/24/how-investors-accelerate-the-affordable-housing-crisis/

We find Casey breaking out of Alcatraz on a branched timeline in 1962.

Source: https://comicbookmovie.com/tv/marvel/loki/lokis-penultimate-episode-reveals-the-past-lives-of-tva-agents-and-teases-reality-breaking-finale---spoilers-a207590