Flight, 1931

 b. 1909, the third of four brothers involved in aviation before, during and after WWII.

In 1932, Flight reported that "The amphibian service between the Clyde and Belfast was opened on August 13 when the new flying-boat Cloud of Iona made the first trip. The passengers included Lord and Lady Malcolm Douglas Hamilton."

He was granted a commission as a Flying Officer in June 1932, in 603 (City of Edinburgh) (Bomber) Squadron, Auxiliary Air Force.

Later a Wing Commander / Acting Group Captain during WWII who, with his second wife Natalie Winslow, founded the American Scottish Foundation after the war.

Died 1964 in a flying accident in Cameroon.

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Malcolm's younger brother David was killed in WWII when he crashed just short of RAF Benson to which he was returning from a mission in a Mosquito; his elder brother George married ATA pilot Audrey Sale-Barker (q.v.), and finally his eldest brother Douglas flew over Everest and later became an Air Commodore in the RAF - it was he who handed Rudolph Hess over to the authorities.

Here is Douglas, getting ready to go on Lady Houston's Everest expedition in 1933: