Jan Theodoor Janssen (1833 - 1905)
Johanna Frederika Florentina Hubertina de Caritat van Peruzzis (1827 - 1908)

Maria Helena Janssen

Maria Helena Janssen was born on 16 Mar 1844 in Heerlen, L. She died⁽¹⁾ on 7 Aug 1895 in Aachen, DE.