John married Sarah Isabella Merchant on 1 Jun 1890 in Marshfield, Coos, Oregon, USA. Sarah (daughter of Charles Henry Merchant and Mary Lincoln Gunn) was born on 24 Jun 1865 in Marshfield, Coos, Oregon, USA; died on 10 May 1894; was buried in Marshfield Pioneer Cemetery, Coos Bay, Coos, Oregon, USA. [Group Sheet] [Family Chart]

1. Irene Elizabeth Preuss was born on 15 Mar 1891 in Marshfield, Coos, Oregon, USA; died on 5 Dec 1960 in San Francisco, San Francisco, California, USA; was buried in San Francisco, San Francisco, California, USA.
2. John Preuss was born on 19 Aug 1892 in Oakland, Alameda, California, USA; died on 24 Mar 1970 in Coos, Oregon, USA.
3. May Sarah Preuss was born on 1 May 1894 in Marshfield, Coos, Oregon, USA; died on 16 Jul 1964 in Monterey, Monterey, California, USA; was buried in Golden Gate National Cemetery, San Bruno, San Mateo, California, USA.