Captain Norman Craig Millman was a World War I flying ace

Flying ace

A flying ace or fighter ace is a military aviator credited with shooting down several enemy aircraft during aerial combat. The actual number of aerial victories required to officially qualify as an "ace" has varied, but is usually considered to be five or more...

 credited with six aerial victories.

He joined the Royal Flying Corps

Royal Flying Corps

The Royal Flying Corps was the over-land air arm of the British military during most of the First World War. During the early part of the war, the RFC's responsibilities were centred on support of the British Army, via artillery co-operation and photographic reconnaissance...

 in May 1916. He began his pilot's career as an instructor and test pilot. He was posted to 48 Squadron to fly a Bristol F.2 Fighter

Bristol F.2 Fighter

The Bristol F.2 Fighter was a British two-seat biplane fighter and reconnaissance aircraft of the First World War flown by the Royal Flying Corps. It is often simply called the Bristol Fighter or popularly the "Brisfit" or "Biff". Despite being a two-seater, the F.2B proved to be an agile aircraft...

on 20 August 1917. He became a flight commander, then rose to command the unit. While there, he drove six enemy planes down out of control between 11 November 1917 and 8 March 1918. He left the squadron in May 1918, and became an instructor back in England.

Reference

Above the Trenches: a Complete Record of the Fighter Aces and Units of the British Empire Air Forces 1915-1920. Christopher F. Shores, Norman L. R. Franks, Russell Guest. Grub Street, 1990. ISBN 0-948817-19-4, 9780948817199.