She stayed with the Marxes as a lifelong housekeeper , friend , and political confidante , and was commonly known to the family by the nicknames Lenchen or Nim .
Helene Demuth joined their household in April 1845 in Brussels , where she was sent by Jenny 's mother .
Helene Demuth stayed with the Marxes as a lifelong housekeeper , friend , and political confidante , and was commonly known to the family by the nicknames Helene Demuth or Nim .
Helene Demuth joined their household in April 1845 in Brussels , where she was sent by Jenny 's mother .