Johannes (Jo) Spermon (1904-1977) a cabinetmaker, married with Dorothea Adriana Gijtenbeek (1907-1990), their children are:

- Casper (1933);
- Diny Anna Dorothea (1940);
- Maria (Ria) Spermon (1945);
- Willem [5 KB] (Wim) Alexander Paul Frederik Lodewijk (1948).

Diny Spermon (1940), married with Jan Waard.
Ria Spermon (1945) married with Peter Kraajeveld.

Casper (Cas) Spermon (28-08-1933) married in Schiedam (1958) with Hendrika Wijnanda van der Kooij (11-10-1932).

The children of Cas Spermon (1933) and Hendrika van der Kooij (1932) are:

- Dolinda Spermon (29-6-1959);
- Rob Spermon [7 KB] (29-12-1963).

Rob Spermon living together with (and planned to married on the 15th of April 2005) with Neliene Spuij (10-11-1974).


Willem Spermon (1948) married in Schiedam (1971) with Petronella (Nel) Jacoba Schouwenaar (1950), their children are:

- Miriam Spermon (1978), living together with Jeroen .. (..);
- Stefan Spermon (1980), and his girlfriend Stefanie.