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Daughter of Gerhard Gerdes and Anna Gerdes Sister of Ricklef Gerdes; Anke Maria Gerdes; Anna Margaretha (Maggie) Oltmanns; Hinrich Janssen Gerdes; Arnd Janssen Gerdes and 5 others; Johan Bernhard Gerdes; Helena Seetge; Frank Gerdes; John George Gerdes and Ette Gerdes « less