I actually met Winston Churchill and shook his hand when he visited my elementary school in Lakenheath in 1955. This puts me just two degrees of separation from almost every major figure of the time, including Stalin. Fortunately, Hitler is one degree further away, since he and Churchill apparently never met.
I know several people who have had fairly extensive dealings with Charles Manson, and one who guarded America’s least popular dinner guest, Jeffrey Dahmer, during his trial.