Douglas Earle Marsh

Born	4 January 1862
Died	15 May 1933
Nationality	English
Employer	University College London; Great Western Railway, Swindon (apprentice); London & North Western Railway, Crewe (Works Manager); Great Northern Railway (Chief Mechanical Engineer's Department, deputy to H. A. Ivatt); London, Brighton and South Coast Railway (Locomotive, Carriage and Wagon Superintendent 1904–1911)

Biography

Douglas Earle Marsh (1862–1933) was a British locomotive engineer who served as Locomotive, Carriage and Wagon Superintendent of the London, Brighton and South Coast Railway from 1904 until 1911. He is associated chiefly with the introduction of the Atlantic to the LBSCR, the H1 Class of 1905 and the H2 of 1911, and with the rich umber livery (the so-called 'Marsh umber') with which he replaced Stroudley's distinctive 'Improved Engine Green'.

Marsh was born at Aylsham, Norfolk on 4 January 1862 and read engineering at University College London. After a Swindon apprenticeship under Dean he served at Crewe Works under Francis Webb, rising to Chief Draughtsman, and from 1896 was deputy to Henry Ivatt at Doncaster on the Great Northern. He joined the LBSCR in 1904 in succession to Robert Billinton.

His H1 Atlantic was a close cousin of Ivatt's GNR C1, built to LBSCR loading gauge, and gave the LBSCR's Brighton expresses the power their long timings demanded. He produced two notable tank classes: the I3 4-4-2T of 1907, the first British engine to use a high-degree Schmidt superheater on a tank engine, and the I1 4-4-2T. The I3s' coal economy on long suburban runs was widely studied and effectively settled the case for superheating in Britain.

Marsh's last years at the Brighton were unhappy. He fell out with the Board over allowances, was the subject of an internal inquiry into the management of the works, and resigned in July 1911 in advance of the LBSCR's Grouping-era reorganisation. He took up consultancy work and served on a number of railway committees. He died at Bromley, Kent on 15 May 1933.

Locomotives designed

LB&SCR E6 Class — Billinton's 1904 LBSCR E6 class 0-6-2T — successor to E4 and E5.
LB&SCR H1 Atlantic — Douglas Earle Marsh's 1905 LBSCR H1 class 4-4-2 "Atlantic" — built by Kitson of Leeds to a near-copy of the GNR Ivatt large-boiler Atlantic, the Brighton's first Atlantics. 5 built. The class evolved into the H2 Atlantics; H2 No. 32424 "Beachy Head" is being newly built by the Beachy Head project at the Bluebell Railway.
LB&SCR I1 Class — Marsh's 1907 LBSCR I1 class 4-4-2T — Brighton suburban tank.
LB&SCR I2 Class — Marsh's 1907 LBSCR I2 class 4-4-2T — variant of I1.
LB&SCR I3 Class — Marsh's 1907 LBSCR I3 class 4-4-2T — superheated express tank, the LBSCR's standard outer-suburban express tank.
LB&SCR I4 Class — Marsh's 1909 LBSCR I4 class 4-4-2T — variant of I3.
LB&SCR I5 Class — Marsh's 1909 LBSCR I5 class 4-4-2T — variant of I3.
LB&SCR I6 Class — Marsh's 1909 LBSCR I6 class 4-4-2T — variant of I3.
LB&SCR I7 Class — Marsh's 1911 LBSCR I7 class 4-4-2T — last variant of the I3 family.
LB&SCR I8 Class — Lawson Billinton's 1912 LBSCR I8 class 4-4-2T.
LB&SCR J Class — Reference to LBSCR J1 / J2 Pacific tanks — see those entries.
LB&SCR J1 Class — Marsh's 1910 LBSCR J1 class 4-6-2T — Pacific tank for LBSCR Brighton main line. Only 1 built. None preserved.
LB&SCR J2 Class — Lawson Billinton's 1912 LBSCR J2 class 4-6-2T — Pacific tank, only 1 built.