Even if the records exist, you will be lucky to be able to view them. I tried for a great uncle who went into an asylum in the early 1900s and died there in the 1960s. Because of a so called 100 year rule, they said I couldn't have copies of them until the 2060s, that is 100 years after his death! If I was still alive I'd be over 120 by then. They did relent and send me copies of the first two pages, showing why he was admitted as that was more than 100 years ago. Many helpful people have told me that apart from census, there is no 100 year rule, but these authorities persist in their belief.