Sir Harley Hugh Dalrymple-Hay was a notable engineer working on underground railways in and around London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

, England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. He was awarded the Telford Medal

Telford Medal

The Telford Medal is the highest prize awarded by the British Institution of Civil Engineers for a paper, or series of papers, in the field of engineering. It was introduced in 1835 following a bequest made by Thomas Telford, the ICE's first president....

 by the Institution of Civil Engineers

Institution of Civil Engineers

Founded on 2 January 1818, the Institution of Civil Engineers is an independent professional association, based in central London, representing civil engineering. Like its early membership, the majority of its current members are British engineers, but it also has members in more than 150...

 for his paper on the Waterloo and City Railway.

Life and career

Harley Dalrymple-Hay was educated privately in Edinburgh

Edinburgh

Edinburgh is the capital city of Scotland, the second largest city in Scotland, and the eighth most populous in the United Kingdom. The City of Edinburgh Council governs one of Scotland's 32 local government council areas. The council area includes urban Edinburgh and a rural area...

 and was articled as pupil to the Chief Engineer of the Midland Railway

Midland Railway

The Midland Railway was a railway company in the United Kingdom from 1844 to 1922, when it became part of the London, Midland and Scottish Railway....

, working on the lines being built by that company in South Wales

South Wales

South Wales is an area of Wales bordered by England and the Bristol Channel to the east and south, and Mid Wales and West Wales to the north and west. The most densely populated region in the south-west of the United Kingdom, it is home to around 2.1 million people and includes the capital city of...

. From there he moved on to the drawing office of the London & South Western Railway. In 1894 he was appointed resident engineer on the Waterloo & City Railway, and after this he continued to work on various underground railway lines. He worked on the Bakerloo line

Bakerloo Line

The Bakerloo line is a line of the London Underground, coloured brown on the Tube map. It runs partly on the surface and partly at deep level, from Elephant and Castle in the south-east to Harrow & Wealdstone in the north-west of London. The line serves 25 stations, of which 15 are underground...

, the Hampstead tube and the Piccadilly line

Piccadilly Line

The Piccadilly line is a line of the London Underground, coloured dark blue on the Tube map. It is the fifth busiest line on the Underground network judged by the number of passengers transported per year. It is mainly a deep-level line, running from the north to the west of London via Zone 1, with...

, and was consulting engineer to the London Post Office Railway

London Post Office Railway

The Post Office Railway, also known as Mail Rail, was a narrow-gauge driverless private underground railway in London built by the Post Office with assistance from the Underground Electric Railways Company of London to move mail between sorting offices...

 which was completed in 1928.

After World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

 he was involved in an extensive programme of station reconstruction on the London Underground

London Underground

The London Underground is a rapid transit system serving a large part of Greater London and some parts of Buckinghamshire, Hertfordshire and Essex in England...

system, including the replacement of many lifts with escalators.