Heinrich Gontermann (25 February 1896 – 30 October 1917) was a German WWI fighter ace credited with 39 victories during the war. Gontermann was also promoted to Staffelführer of Prussian Jagdstaffel 15. Gontermann was only one of several German pilots killed testing the new Dr.I. As a result, Fokker was accused of shoddy construction and directed to change production methods for the manufacture of the plane.
Leutnant Kurt Wüsthoff (27 January 1897 - 23 July 1926) was a German fighter pilot credited with 27 victories during World War I. He was the second youngest winner of Germany's highest decoration for valor, the Pour le Merite or Blue Max. Wüsthoff was seriously wounded in both legs, taken prisoner, and treated in various French hospitals. He complained bitterly about the adequacy of his treatment.