RAeC 1937

 b 23 September 1901 in Northumberland, the eldest daughter of Lord Walter and Lady Hilda Runciman.

Her brother Walter (co-Director, with Connie Leathart (q.v.), of Cramlington Aircraft, First Director-General of BOAC, Commodore of the Royal Yacht Squadron, OBE, etc, etc) became the 2nd Viscount Runciman of Doxford, and her sister Katherine ('Kitty') was adjutant for the Women's Section of the ATA from March 1941.

I sometimes feel that Margie gets a bad press; she was, apparently, quiet and rather withdrawn, (nicknamed 'Mrs Cold Front') and, in photos, always seems to have that far-away look in her (green, btw) eyes. But, her ability, and her devotion to duty and to her friends, were never in doubt.

She got her RAeC certificate in 1937. In fact, she acquired her first aeroplane from her brother Walter; a 1931-reg D.H. Puss Moth G-ABLG, which he had flown in two King's Cup races.

She had married Roderick Nettleton King-Farlow in July 1925. Their daughter Ann was born in 1931, but they divorced in 1936, and she then married Douglas Keith Fairweather in March 1938. He was a businessman from Glasgow, and her complete opposite - outgoing, irreverent, and very eccentric. 

Margie then sold her aeroplane, and she and Douglas re-registered his Puss Moth G-ABYP in their joint names. Later they also bought a Leopard Moth, G-ACXH.

She had a horrible experience in 1939 when her friend, Dr. Elizabeth Cook, was killed by walking into the propeller of the aeroplane Margaret was about to pilot; they were going to fly to Paris for a holiday, and the plane was standing with the engine ticking over.

 FAI 1939

So, prior to WWII she was one of the most experienced women pilots in the country, with 1,050 hours of civilian flying, and (from late 1937) was an instructor with the Scottish Flying Club. She had flown Miles Whitney Straights, D.H. Moths, Puss Moths, Tiger Moths, Fox Moths, Leopard Moths, Hornet Moths, Dart Kitten, Taylor Cub, Potez, and Percival Vega Gull, in Belgium, Holland, Germany, Sweden, Denmark, Hungary, Czechoslovakia, France Switzerland and Austria.

Not surprisingly then, she was one of the 'First Eight' Women ATA pilots at Hatfield, starting in January 1940. 

Here story continues here:  Fairweather, Margaret (W.7) (ata-ferry-pilots.org)