Cornelis Spermon (1907-1987) married with Cornelia Adriana Morren (1910 - 1999) in 1934. Cornelia moved to Australia. Their children:

- Harry (Henricus) Spermon, born 1935 Hilversum;
- Bob (Robert) Spermon, born 1940 De Bilt;
- Bert (Theophil Albert) Spermon, born 1943 De Bilt;
- Peter (Pierre) Spermon, born 1947 Venlo.

They moved in 1951 to Sydney [Australia] (the family left Holland from Rotterdam by boat "De Groote Beer", arriving in Sydney - Australia on 29th March, 1951).

Harry (Henricus) Spermon (1935), married (1957 Brisbane) with Catharina Meijboom (daughter of Adrianus Meijboom en Rensje Oldenburg), born 1937 Velzen (NL). Their children:

- Ron (Ronald Henricus) Spermon, (born 1958), married (1980) with Deborah May Walker (1958), children:
* Emma Jayne Spermon, born 1986;
* Ashley Kate Spermon, born 1988;
- Yvonne Catharina Spermon, born 1961, married 1992 (Woody Point [Australia]) with Bruce Macleod (1952 te Brisbane), their children:
* Jared Henry Macleod, born 1994 Redcliffe [Australia];
* Rikki Alyse Macleod, born 1995 Cabooltree [Australia].


Bob (Robert) Spermon (1940), married 1968 (Alberton) with Marlene Veronica Necker (born 1948 te Beenleigh [Australië]). Their children:

- Jannelle Marree Spermon, born 1969 Brisbane married with Brett Rodney Doolan (1967 Brisbane), their children:
* Casey Brenelle Doolan, born 1997;
* Lachlan Thomas Doolan, born 2000;
- Tracey Michelle Spermon, born 1972 married with Gary Michael Richardson (1974 Poole [Great Britan], their child:
* Zachary Karl Richardson, born 2005 Brisbane;
- Karen Veronica Spermon, born 1974 Brisbane married 2005 Las Vegas [US] with David Patrick Coggan (1971 Blenheim [New Zealand];
- Rob (Robert Joseph Carl) Spermon, born Brisbane married with Karen Ann Harris (1981 Brisbane).


Bert (Theophil Albert) Spermon (1943) married (Brisbane) with Marilyn Annette Koroloff, (1946 Brisbane). Their children:
* Michelle Spermon, born 1975 Brisbane;
* Bradley Spermon, born Brisbane.


Peter (Pierre) Spermon (1947) married 1970 (Brisbane, divorced 2000) with Jenny Crawford (1952 Brisbane). Their children:

* Matthew Spermon, born 1974, living together (Brisbane) with Rosie Suttie (1978), their children:
Lakeisha Rose Suttie, born 1995 and Nekaya Omaie Suttie, born 1999;
* Rebecca Spermon, born 1979.

Peter (Pierre) Spermon (1947) married 2001 (Brisbane) with Deborah Fay Nelson (1958 Brisbane) Their child:
* Michael James Nelson, born 1984 te Brisbane, Carpenter.