What German ace-of-aces was shot down by Cedric Bassett Popkin during World War 1?
Cedric Popkin Cedric Bassett Popkin (Born 20 June 1890, died 26 January 1968) is considered the person most likely to have killed German ace Manfred von Richthofen — also known as the "Red Baron" — on 21 April 1918. Popkin was an anti-aircraft (AA) machine gunner with the First Australian Imperial Force (AIF), during World War I.
Samuel Frederick Henry Thompson Captain Samuel Frederick Henry "Siffy" Thompson {'1': ", '2': ", '3': ", '4': "} (30 August 1890 – 27 September 1918) was a British World War I two-seater fighter ace who, in conjunction with his observer-gunners, was credited with thirty aerial victories (18 destroyed, 12 'out of control') before being was shot down and killed. Despite having an active fighter career of only five months, he reached the rank of captain and won two British military decorations.