Chest Hospital Machynlleth 1947. Nancy Humphreys was suffering from Tuberculosis and was a patient at the Chest Hospital from June 1946 till March 1947. Sadly she died on the 9th of March 1947 at only 11years old. Her dad Llewelyn had died two years before, suffering from Tuberculosis too. These are extracts from the diary she kept while at the hospital.