This information was sent to me by a WW1 researcher who specializes in the North Derbyshire area.
Reginald Cammell , was the grandson of Charles Cammell Sheffield Steel Baron . He was the first airman to be killed while on active service . His father Archibald Allan Cammell was born in Sheffield (1856) and lived at Brookfield Manor Hathersage. The family company later merged to form Cammell Laird
There is a picture of Reginald Cammell in The Royal Aero Club Aviators Certificates 1910- 1950 , he is listed as no 45 which means that he was the 45th person to be granted an Aviators Certificate ( the modern day equivalent of a Pilot’s Licence ) in Great Britain . If you scroll back to the start of the Certificates book you will see he some very illustrious contemporaries Hon Charles Rolls & Geoffrey de Havilland
From the Dundee Courier - Wednesday 20 September 1911
HOW ARMY AIRMAN LOST HIS LIFE.
A Coroner's inquiry into the death of Lieutenant Reginald Archibald Cammell (24), of the Army Air Battalion, who was killed whilst making a flight at Hendon Aerodrome on Sunday evening, was held yesterday, the jury returning a verdict of "Death from misadventure." Mr Barber, of the Aeronautical Syndicate, who witnessed the accident, said deceased was making a practice flight on a Valkyrie aeroplane, but, making too sharp a turn, the machine backed, and coming over on its side slipped to the ground. The funeral of the late Lieutenant Cammell will take place at Aldershot to-day with full military honours.
(Buried Aldershot Military Cemetery)
His memorial has listed status
Reginald Archibald Cammell
Born 10.1.1886 Inverness. Parents Archibald Allan & Katherine Marion(Orr) Cammell. Believe 3 siblings.
1901 Census Believe Reginald at Repton School, Derbyshire
1911 Census. Reginald at Gibraltar Barracks, Stanhope Lines, Aldershot. He was an Army Officer, Royal Engineers.
Probate. Of Aldershot, Hampshire. Died at Hendon Middx. Admin to Katherine Marion Cammell, widow(his mother). £3412.4s.8d