August married Emma VON ROSENBERG on 6 Sep 1882 in Austin, Travis, Texas, USA. Emma (daughter of Carl Wilhelm VON ROSENBERG and Auguste Franziska ANDERS) was born on 15 May 1857 in Austin, Travis, Texas, USA; died on 19 Dec 1924 in Austin, Travis, Texas, USA; was buried in Austin, Travis, Texas, USA. [Group Sheet] [Family Chart]

1. Hilmar August GIESEN was born on 25 Dec 1883 in Austin, Travis, Texas, USA; died in Jun 1946 in Atlanta, Fulton, Georgia, USA.
2. Walter Eduard GIESEN was born on 25 Dec 1883 in Austin, Travis, Texas, USA; died on 27 Nov 1942 in Providence, Providence, Rhode Island, USA.
3. Margarete Maria GIESEN was born on 2 Sep 1885 in Austin, Travis, Texas, USA; died on 26 Dec 1916 in Berlin, Brandenburg, Prussia.