John Stuart Hindmarsh also known as Johnny Hindmarsh, was an English

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...

 racecar driver and aviator

Aviator

An aviator is a person who flies an aircraft. The first recorded use of the term was in 1887, as a variation of 'aviation', from the Latin avis , coined in 1863 by G. de la Landelle in Aviation Ou Navigation Aérienne...

.

Hindmarsh was educated at Sherborne

Sherborne

Sherborne is a market town in northwest Dorset, England. It is sited on the River Yeo, on the edge of the Blackmore Vale, east of Yeovil. The A30 road, which connects London to Penzance, runs through the town. The population of the town is 9,350 . 27.1% of the population is aged 65 or...

, Dorset

Dorset

Dorset , is a county in South West England on the English Channel coast. The county town is Dorchester which is situated in the south. The Hampshire towns of Bournemouth and Christchurch joined the county with the reorganisation of local government in 1974...

 and then attended the Royal Military College

Royal Military Academy Sandhurst

The Royal Military Academy Sandhurst , commonly known simply as Sandhurst, is a British Army officer initial training centre located in Sandhurst, Berkshire, England...

. He joined the Royal Army Tank Corps

Royal Tank Regiment

The Royal Tank Regiment is an armoured regiment of the British Army. It was formerly known as the Tank Corps and the Royal Tank Corps. It is part of the Royal Armoured Corps and is made up of two operational regiments, the 1st Royal Tank Regiment and the 2nd Royal Tank Regiment...

 in 1928, then in 1930 learned to fly with the Royal Air Force

Royal Air Force

The Royal Air Force is the aerial warfare service branch of the British Armed Forces. Formed on 1 April 1918, it is the oldest independent air force in the world...

.

Hindmarsh also raced Talbot

Talbot

Talbot was an automobile marque that existed from 1903 to 1986, with a hiatus from 1960 to 1978, under a number of different owners, latterly under Peugeot...

 and Lagonda

Lagonda

Lagonda is a British luxury car marque, founded as a company in 1906 in Staines, Middlesex by a former opera singer from Ohio, but of Scottish ancestry, named Wilbur Gunn . He named the company after a river near the town of his birth, Springfield, Ohio, United States...

 cars; he won the Le Mans 24-Hour Race in 1935 in a 4½ litre Lagonda M45R Rapide with Luis Fontés

Luis Fontés

Luis Fontés was a British racing driver of Argentine parentage who, along with John Stuart Hindmarsh, won the 1935 24 Hours of Le Mans for the Lagonda automobile company...

 (222 laps; 3006.797 km; average speed 125.283 km/h).

Hindmarsh was killed aged 30 while test flying Hawker Hurricane

Hawker Hurricane

The Hawker Hurricane is a British single-seat fighter aircraft that was designed and predominantly built by Hawker Aircraft Ltd for the Royal Air Force...

 I L1652 at Brooklands

Brooklands

Brooklands was a motor racing circuit and aerodrome built near Weybridge in Surrey, England. It opened in 1907, and was the world's first purpose-built motorsport venue, as well as one of Britain's first airfields...

on 6 September 1938; he is thought to have been overcome by carbon monoxide fumes in the cockpit, and the aeroplane then dived almost vertically into the ground and exploded at the foot of St George’s Hill almost opposite the Vickers factory entrance.