(1908–1913) Professor James Geikie(英语:James Geikie) (1913–1915) Dr JohnHorne(英语:JohnHorne) (1915–1919) Professor Frederick Orpen Bower(英语:Frederick Orpen
ISBN 1-85414-250-X. Day, John R; Reed, John. The Story of London's Underground. Capital Transport. 2008 [1963]. ISBN 1-85414-316-6. Horne, Mike. The Bakerloo
Transport. 2005. ISBN 1-85414-293-3. Horne, Mike. The District Line. Capital Transport. 2006. ISBN 1-85414-292-5. John McAslan & Partners. South Kensington
ISBN 1-904915-00-0. (原始内容存档于2008-06-28). Horne, Mike. The Metropolitan Line. Capital Transport. 2003. ISBN 1-85414-275-5. Horne, Mike. The District Line. Capital