This facility was closed down in 2009. Here is a follow up article by BBC on some of the kids (including Didi), and what happened to them after. http://news.bbc.co.uk/1/hi/world/euro.

Skip to 1:03 for talk (Toured 70 Hospitals in 30 States)

For more than half the nation's history, vast mental hospitals were a prominent feature of the American landscape. From the mid-nineteenth century to the early twentieth, over 250 institutions for the insane were built throughout the United States; by 1948, they housed more than a half million patients.