In the address book for München and surroundings from the year 1909 is the following entry for the address of Clara Löwenberg: Theresienstra;e 66 - Frauenverein - Arbeiterinnenheim.  The postcards are a correspondence of daughter ( Clara Löwenberg), at the time in München and mother ( Betty Löwenberg ) in Hohenems. - Betty Loewenberg was born on May 1, 1858, in St. Gallen, Switzerland. She was married to Josef Loewenberg, who was born in Hohenems on July 25, 1840.

In the Berlin address book - edition 1933 finds the following entry: L. Joachimsthal, Darmhandlung, Warschauer Stra;e 78

In a listing of Stuttgart Jews at the beginning of the year 1864, the Gebrüder Frankfurter with a leather shop in Hirschstraße 35 are listed. ( Way and fate of the Stuttgart Jews - Maria Zelzer, page 38 )

In the address book of the city of Berlin for the year 1898 the following entry is found: Bamberger Ludwig, Dr. jur., Rentier, W. Margarethenstraße 18.  I. E.

Eduard Nussbaum was born on July 17, 1878 in Borken, Hesse. His parents were Levi Nussbaum (11. 3. 1845 to 3.10.1931), merchant in Borken and his wife Minna née Plaut (19. 6. 1850 to 9. 2.1899).

In the Jüdisches Adressbuch für Gross-Berlin - Edition1929/1930 is the following entry: Hahn Harry, N W 87 Lessingstra;e 54.  -  Harry Hahn was the founder and 1st Chairman of the Berlin Rowing Club " Triton " eV. - Founding date October 1, 1898. In 1927, the still 1st Chairman Harry Hahn bought a waterfront property on the Spree for the club, which in the following year of the purchase the laying of the foundation stone of a boathouse followß.

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The Jüdische Altenheim Gerlachstraße was confiscated by the National Socialists during the Second World War and used as a collection point for elderly and old Jews who were to be transported to concentration camps. 260 original residents and over 2000 elderly Jews were deported from here. In the late 1960s, the buildings that had not been destroyed by Allied bombs were demolished to make way for the GDR's House of Statistics.