"She was a real-life runaway heiress - but what really happened to her after that?"
I have found 1912 news items clarifying that Violet was NOT an heiress at all, and that the "background story" was used to generate newspaper coverage to help in locating her.
I also found a Marshfield WI newspaper article about Violet being found, which includes a very good photo of her. If you would like these documents, contact me at:
metaphor4 [at] sbcglobal [dot] net