Well my dear, when you look at the mantra of what the instituition was based on, you will come to appreciate why so many lives can not be tracked after their dissapearance. Let's face it, even though Mr. letchworth might have seemed compassionate in the day for pooling the "feeble minded" into one safe haven, it was always under a guise, always agenda. Grand standing science and the exploitation of experimental pigs they used to further the race for cure, was always what it was about. Almost the Cold War of medicine. Just ask Hilary. Is he still alive btw? I think he knows where the plots were marked.