- World War I flying ace credited with nine aerial victories.
Mauduit was a cadet at RMC Sandhurst when World War I began. On 15 August 1914 he was commissioned into 7th (Princess Royal's) Dragoon Guards upon graduation. On 17 May 1915 he was promoted to Temporary Lieutenant; he was confirmed in this rank 9 August 1915.
He earned Pilot's Certificate number 4271 on 24 February 1917. On 25 April 1917 he was seconded to Royal Flying Corps as a Lieutenant. On 12 July 1917, he began his victory string while assigned to 11 Squadron to fly a Bristol F.2 Fighter. By 17 October, with the aid of either E. R. Dibbs, Jack Mason, or C. C. Dennis manning the guns in the rear seat, he had driven down out of control six Albatros D.Vs. On 21 October, with Leslie McRobert in the back seat, Mauduit set a D.V. afire, destroyed another, and drove a third one down over Lecluse. On 12 December 1917, he was raised from Flying Officer to Flight Commander with the concomitant rank of Temporary Captain.
Post war On 8 December 1922, he was granted seniority as Captain from 20 November 1919.