John married Frederike Anna Obenland 5 Dec 1918, Kings County, New York, USA. Frederike (daughter of Karl Obenland and Friederike Pauline Bernecker) was born 5 Jul 1875, Manhattan, New York County, New York, USA; died Nov 1929, New York, USA; was buried 25 Nov 1929, Brooklyn, Kings County, New York, USA. [Group Sheet]