Gustav Leffers [SEP] conflict
Gustav Leffers
Gustav Leffers (2 January 1895 –27 December 1916) was a German flying ace in World War I, credited with 9 victories.
Background.
Leffers was born in Wilhelmshaven, the son of a naval engineer. He was educated in Wilhelmshaven and Stettin and went on to join the Holland America Line as an engineer candidate. In July 1914, just prior to the start of the First World War, he returned from a cruise to the United States.
Involvement in World War I.
Leffers
used against them. This seventh victim of Quested was German ace Gustav Leffers. In turn, about an hour later, Quested was forced down behind British lines by another German ace, Wilhelm Cymera. 
On 27 January 1917, he drove down an opposing fighter over Beaurains for his eighth victory; his final tally was three enemy planes destroyed and five driven down. On 13 February, he was awarded the Military Cross, his citation reading:
The "Croix de Guerre" from France followed on 1 May 1917.