When I was in high school in the '80s, we had 2 janitors. One was a black man that I guess was in his late 50's/early '60s. He was one of only a few to escape Jonestown. http://www.iberianet.com/news/local-who-survived-jonestown-dies/article_765e1ca3-30e3-5ede-b2c6-08fa36eb1b25.html
The other was an old white man, who had a speech impediment, and always seemed to be in a hurry. Turns out he was a survivor of the Battan death March.