According to several sources his full name should be Hilmar Frank von Hausen-Aubier. He was married to Traute von Hausen-Aubier, who's name he also used.
Promotions:
October 1st, 1937: Oberleutnant (RDA -77-);
September 1st, 1940: Rittmeister (RDA -9-);
May 1st, 1943: Major im Generalstab (RDA -18-);
January 1st, 1945: Oberstleutnant im Generalstab.
Career:
November 1st, 1932: Infanterie-Regiment 1;
October 12th, 1937: Adjutant, Radfahr-Abteilung 1;
August 1st, 1939: Schwadronchef, Radfahr-Abteilung 1;
November 1st, 1939: O1, 1. Kavallerie-Division;
September 26th, 1940: Id, Ordonnanzoffizier, Stab, Deutsche Heeresmission in Rumänien;
March 1st, 1942: Führerreserve OKH/Generalstabsausbildung III. Panzerkorps;
June 1st, 1942: Generalstabslehrgänge, Berlin;
September 5th, 1942: Id, 18. Armee;
December 1st, 1943: Führerreserve OKH;
December 10th, 1943 - April 10th, 1945: Ia, 1. Infanterie-Division;
April 11th, 1945 - May 08th, 1945: Chef des Stabes, VI. Armee-Korps
May 09th, 1945 : soviet POW
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