Winfield married Bethia C. Gunn about 1868. Bethia (daughter of John Craster Gunn and Mary Ann Fuller) was born on 9 May 1853 in New Bedford, Bristol, Massachusetts, USA; died on 6 Mar 1890 in Oakland, Alameda, California, USA. [Group Sheet] [Family Chart]

1. Marshall Christen Curtis was born in Oct 1869 in California, USA; died on 4 Jun 1933 in Sacramento, Sacramento, California, USA; was buried in Sacramento, Sacramento, California, USA.
2. Winfield U. Curtis was born in 1872 in California, USA; died on 25 Jan 1880 in Oakland, Alameda, California, USA; was buried in Mountain View Cemetery, Oakland, Alameda, California, USA.
3. Bertha Aileen Curtis was born in 1873 in San Diego, California, USA; died on 4 Mar 1890 in Oakland, Alameda, California, USA; was buried on 6 Mar 1890 in Oakland, Alameda, California, USA.
4. George William Henry Curtis was born on 21 Nov 1876 in California, USA; died on 2 Nov 1931 in Alameda, California, USA; was buried in San Francisco, San Francisco, California, USA.