20227 was named Sherlock Holmes at the Buckinghamshire Railway Centre's Quainton Road station on 29 April 2018. It is seen here along with 20142 Sir John Betjeman just a few minutes later, as it passes the site of Waddesdon Manor station with the London Transport Museum 1Z20 15:05 Quainton Road to West Ruislip 'Class 20 Metropolitan' Railtour. Class 33 D6515 is on the rear.