"1851-06-23Z"^^ . "Helene \"Lenchen\" Demuth (1820-1890) was the housekeeper of Jenny and Karl Marx, later serving as the household manager and political confidante of Frederich Engels. She is best remembered as the mother of a child believed by most scholars to have been fathered by Marx."@en . "1929-01-28Z"^^ . . . . . . "1820Z"^^ . "1851Z"^^ . "Demuth, Helene"@en . . . "1820-12-31Z"^^ . . . "1890Z"^^ . "Helene Demuth"@en . . "Henry Frederick Demuth"@en . . . . "Housekeeper of Karl Marx" . . "1929Z"^^ . . . "Frederick Lewis Demuth"@en . . . . . . . . "1890-11-04Z"^^ . .