Isaäc Casoetto was a son of Ephraim Casoetto and Rachel de Vos.
He married Janna Hendrika Koenen in 1920 in Steenwijk. She died in 1931. They had a child.
Addition of a visitor of the website
This person is commemorated on a memorial in Steenwijk. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.