Friedrich Karl Klausing belonged to Potsdam's 9th Infantry Regiment. On July 11, 1944, he accompanied Colonel Claus von Stauffenberg as adjutant to Hitler's Berghof residence. Klausing made certain a car and plane were standing by for the getaway to Berlin.
On July 15, he accompanies Stauffenberg in the same capacity to the Wolf's Lair.
On July 20, 1944, Klausing dispatched co-conspirators in the plot against Hitler — von Kleist, von Hammerstein, and von Oppen — from Berlin's Esplanade Hotel to Bendlerstrasse to help Stauffenberg launch the uprising.
Klausing was tried for his role in the conspiracy by the “People's Court” and executed.
Sources: Joric Center