As I don't know the exact story, I can only guess. One main element might be Josephine herself, her character, and what she was doing under the bridge. Another could be the bridge, which might be a significant location for some reason like it was a place of refuge or a connection to something important.
Well, if we think about it, the 'Josephine under the bridge' true story might be about a community. Josephine could be a key figure in a group that used the area under the bridge for various reasons. It could be a place where they gathered, shared stories, or helped each other out. It might also be a story that has been passed down in a particular family or neighborhood, with Josephine being a symbol of something important like hope or resilience.
The song 'Under the Bridge' by Red Hot Chili Peppers was inspired by Anthony Kiedis' real - life experiences. He was struggling with drug addiction at the time. The 'under the bridge' referred to a place in Los Angeles where he used to go to get away from his problems and think. It was a very personal and emotional song for him.