After schooling in Ireland and at Marlborough College, Raphael joined the Royal Engineers in 1914 and served with the cable section of the Signals in France and at Gallipoli. He transferred to RFC and learned to fly in Heliopolis, Egypt making his first solo flight on 28th April 1917. Subsequently he joined National Flying Services and in 1934 became personal pilot firstly to Mary, Duchess of Bedford until her death in 1937 and then to the Marquis of Londonderry. By 1940 he had joined the Accident Investigation Branch and in 1960 was appointed Chairman of the Northern Ireland Advisory Committee for Civil Aviation and was High Sheriff of Co Down in 1961.
Within the family he was known as Raf or Uncle Raf (he greatly disliked being called Ralph) which was particularly appropriate as he became one of the first members of the RAF when it emerged from the RFC.
|1907||Death of father Capt. John PRESTON|
|1913||Married Margaret Matthew WELLS|
|1919||Birth of son John Chevallier PRESTON|
|1921||Birth of daughter Pauline Chevallier PRESTON|
|1922||Birth of daughter Margaret Chevallier PRESTON|
|1924||Birth of daughter Ann Chevallier PRESTON|
|1940||Death of mother Edith Isabella Maria CHEVALLIER|
|1943||Death of wife Margaret Matthew WELLS|
|1944||Married Mary Edmund Sides TURNER-BROWN in St Peter's Church, Belsize, London|
|1945||Birth of daughter Lee Chevallier PRESTON|
|1946||Birth of son Patrick Chevallier PRESTON|
|1969||Death of daughter Pauline Chevallier PRESTON|
|1970||Death of son John Chevallier PRESTON|