Willem Frederik Spermon (1842-1898 ) married in 1865 with Juliana Goedkoop (1840-1889) . Their child:

- (also) Willem Frederik Spermon (1867-..) married in 1889 with Anna Alida Baars (1877-..) and in 1913 with Theodora van den Janssen Doormalen (1873-..) from Arnhem.