Jenny's activities in Germany (1917 - 1939) Read more about Jenny's activities in Germany (1917 - 1939)
Spreenhagen, Germany (1935 - 1936) Time 1935 - 1936 Read more about Spreenhagen, Germany (1935 - 1936)
Published articles in newspapers and journals Read more about Published articles in newspapers and journals
Founded schools for children with mental retardation (conditions) (1929 - ?) Read more about Founded schools for children with mental retardation (conditions) (1929 - ?)
