Frans Joseph Knubben⁽¹⁾ was born⁽²⁾ on 29 Jan 1894 in Hulsberg, L. He married⁽³⁾ Maria Jongen on 19 Jun 1919 in Nuth, L.
Maria Jongen⁽¹⁾ was born⁽²⁾ on 30 Jun 1898 in Nuth, L. She married⁽³⁾ Frans Joseph Knubben on 19 Jun 1919 in Nuth, L.