Othon married Schlömer Johanna Louise Marie on 9 Jul 1913 in Utrecht. Johanna was born on 22 Mar 1895 in Den Haag; died on 24 Dec 1982 in Soest; was buried in Soest. [Group Sheet]

1. Zimmermann Louise Johanna Wilhelmina was born on 25 Jun 1913; died on 15 Sep 1953 in Soest.
2. Zimmermann Ottolina Maria was born on 6 May 1922; died on 7 Feb 2006 in Soest; was buried in Soest.
3. Zimmermann Othon J was born in 1927 in Soest.
4. Zimmermann Augustina was born on 31 Oct 1928 in Soest; died on 28 Feb 2000 in Soest; was buried in Soest.