Opened a shelter for Jewish war orphans in Kaunas in 1919 Read more about Opened a shelter for Jewish war orphans in Kaunas in 1919
Siegfried's activities in Lithuania (1919 - ?) Read more about Siegfried's activities in Lithuania (1919 - ?)
He founded a Jewish orphanage (Jüdisches Volksheim) in Berlin in 1916 Read more about He founded a Jewish orphanage (Jüdisches Volksheim) in Berlin in 1916
Served as a physician during World War I in the German Army Read more about Served as a physician during World War I in the German Army
Siegfried's activities in Mandatory Palestine/Israel (1927 - ?) Read more about Siegfried's activities in Mandatory Palestine/Israel (1927 - ?)
Was general director of the National Insurance Institute of Israel (1954 - 1969) Read more about Was general director of the National Insurance Institute of Israel (1954 - 1969)