George married Vera Mildred Perkins on 17 Jan 1914 in Vanderburgh County, Indiana, USA. Vera (daughter of William C. Perkins and Mary Gertrude Rieber) was born on 12 Dec 1898 in Evansville, Vanderburgh County, Indiana, USA; died in in USA. [Group Sheet] [Family Chart]

1. Jewell Emma Koob was born on 20 Nov 1914 in Evansville, Vanderburgh County, Indiana, USA; died on 6 May 2001.
2. George Killian Koob was born on 19 Dec 1916 in Vanderburgh County, Indiana, USA; died on 6 Apr 1979 in Lincoln Park, Wayne County, Michigan, USA.
3. Mildred Catherine Koob was born on 21 Aug 1919 in Evansville, Vanderburgh County, Indiana, USA; died on 28 Nov 1992.
4. Gertrude Koob was born on 26 Dec 1921 in Evansville, Vanderburgh County, Indiana, USA; died on 4 Sep 2010 in Michigan, USA.
5. Marjorie Helen Koob was born on 18 May 1924 in Evansville, Vanderburgh County, Indiana, USA; died on 5 Jun 1991 in Taylor, Wayne County, Michigan, USA.
6. Alvera Edna Koob
7. Delores Alfreda Koob
8. Beverly Martine Koob