He married Katharina Gertrud Korte am 1 May 1889 in Alfhausen, Niedersachsen, Deutschland 

 II-1Helena Josephine Wellbrock, Born 23 Feb 1890

 II-2Johann Hermann Wellbrock, Born 24 Jun 1891, Died 22 May 1964

 II-3Josephine Elisabeth Wellbrock, Born 10 Apr 1893

 II-4Bernard Theodor Wellbrock, Born 07 Sep 1894

 II-5Bernard Joseph Wellbrock, Born 19 Jan 1896

 II-6Maria Josephine Wellbrock, Born 15 Jul 1897

 II-7Bernardine Friderika Wellbrock, Born 05 Dec 1898

 II-8Christian Friedrich Wellbrock, Born 30 Dec 1900

 II-9Anna Hermine Elisabeth Wellbrock, Born 21 Jan 1903

 II-10 Wellbrock, Born 20 Apr 1910, Died 20 Apr 1910