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Johanna's Heritage
Parents: Hilmar Johannes Backer, Maria Dam
Siblings: Christina Regina Backer, Johannes Backer, Maria Catharina Backer, Jan Dam Backer, Margaretha Catharina Backer, Lucia Justina Backer, Dina Petronella Backer, Dina Petronella Backer, Apollonia Frederika Backer, Hilmar Johannes Backer, Petrus Diederich Backer