Lieutenant-Colonel William Douglas Stock Sanday, DSO, MC (born 1883) was a British World War I flying ace credited with five aerial victories.
[10] He gained his first aerial victory on 11 October when, in conjunction with two other aircraft, he and his observer Second Lieutenant Ellison, forced down a German Albatros two-seater at Noyelles-lès-Vermelles and captured the crew.
[1][11] On 8 December he was appointed a flight commander with the acting rank of captain,[12] and following an artillery spotting mission on 1 January 1916 was awarded the Military Cross.
Sanday and Lieutenant Bernard Beanlands shared in the destruction of one aircraft, a Roland C.II over Élincourt, killing the pilot Wilhelm Fahlbusch and observer Hans Rosencrantz,[1][11] and the others were driven off.
[11] Flying a Spad VII single-seat fighter, he gained his fifth and final victory on 13 July, destroying a German reconnaissance aircraft over Lille.
During World War I it had become the largest grain export company operating in the United States, and served as the purchasing agent for the British government.
[26] By the end of 1923, when the partnership was dissolved, it had offices in London, Liverpool and Hull in England, Antwerp in Belgium, Karachi and Bombay in India, Buenos Aires and Rosario in Argentina, and New York, USA.