When the war broke out, Edmund Roger Tempest was farming with his brother in Saskatchewan, Canada. Together, they returned to England, joining the King's Own Yorkshire Light Infantry before transferring to the Royal Flying Corps. On 18 August 1915, 2nd Lieutenant Tempest received Royal Aero Club Aviator's Certificate 1604 on a Maurice Farman biplane at Birmingham on 18 August 1915. Tempest's brother, Second Lieutenant Wulstan J. Tempest, was credited with downing Zeppelin L31 on 1 October 1916. Posted to 64 Squadron in July 1917, Edmund Tempest scored his first victory later that year flying a D.H.5. In 1918, flying the S.E.5a, he scored an additional 16 victories before returning to England at the end of August.
Great Britain, Royal Aero Club Aviators' Certificates, 1910-1950
Military Cross (MC)
T./Capt. Edmund Roger Tempest, Gen.
List and R.F.C.
For conspicuous gallantry and devotion to duty. He attacked a formation of seven enemy machines, firing on one from a distance of a few feet and destroying it. On another occasion with his patrol he engaged thirteen enemy machines. Though both his guns were out of action, he continued fighting for fifteen minutes in order to enable the rest of his patrol to keep up the fight. Having driven off the enemy, he brought his patrol back safely. He showed splendid courage and initiative.
Capt. Edmund Roger Tempest, M.C.
Since March last this officer has destroyed nine enemy machines. A daring and most capable officer, who never hesitates to engage the enemy. By brilliant leadership he achieves success with the minimum of loss.