Mr WC Lobeck was admitted to Long Grove on 8 March 1937 and discharged on 29 May 1938. He was then readmitted on 21 Jun 1938, but no discharge date is given.
Surrey's former hospitals we also hold thousands of individual case medical case files but I'm afraid that only a small handful survive for Long Grove and Mr Lobeck's is not among them.
This is a reply from Surrey History Centre