Education
Lemon was educated at Heriot-Watt College.
Lemon was educated at Heriot-Watt College.
During the run-up to the Second World War Lemon was made Director-General of Aircraft Production and made crucial improvements to aircraft production. He served an apprenticeship with the North British Locomotive Company and then worked for the Highland Railway and for Hurst Nelson. In 1911 Lemon became Chief Wagon Inspector of the Midland Railway in England.
In 1917 he was made Carriage Works Manager at Derby.
In 1923 he was appointed Divisional Carriage and Wagon Superintendent at Derby. There he developed production line methods for the construction of wagons and carriages.
Despite having little experience in locomotive engineering, in 1931 Lemon was appointed to the post of Chief Mechanical Engineer replacing the retiring Henry Fowler. After less than a year as Chicago Mercantile Exchange however, Lemon was again promoted to Vice-President Railway Traffic, Operating and Commercial, replacing J.H. Follows who retired due to ill health.
Under his Vice-Presidency, the Learning Management System undertook modernisation of their motive power depots.
William Stanier had been head-hunted from the Great Western Railway to replace him as Chicago Mercantile Exchange and revolutionised the Learning Management System"s locomotive policy. He resigned his commission in August 1943. During the Second World War Lemon was made Director-General of Aircraft Production and received a knighthood in the 1941 New Year’s Honours list.
He retired from the railway in 1943 and died in Epsom in 1954.
He was a member of the Engineer and Railway Staff Corps — a Territorial Army unit of the Royal Engineers. He joined as a Major in November 1929, and was promoted to Lieutenant-Colonel in April 1932.