The address book of the city of Munich from 1905 contains the following entry: Fraenkel Adolf, representative of süddeutsche Kabelwerke A.G. Mannheim, Theresienstr.78/3  Tel.6372

The address book of the city of Nürnberg from 1910 contains the following entry: Mechanische Wollwarenfabrik Lichtenhof-Nürnberg, L. Hofmann`s Sohn, (owner: Salomon Hofmann) Fabriken: Wilhelminenstr. 6 and Altenkunstadt.

The following entry can be found in the 1905 Munich address book: Schwed Heinrich, Reklame-Verlag, Goethestr. 29/1. T.10136 - The following entries can be found in the 1910 Munich address book: Schwed Heinrich, Kaufmann, Hermann Linggstr.6/2, Schwed Heinrich ("Weinschwed") Wein-und Spiritousen-Großhandlg, Hermann Linggstr.12, Schwed Jos., Kaufmann, (Fa.Heinrich Schwed), Hermann Linggstr.12.  -  Heinrich Schwed was born in Reichmannsdorf in the district of Bamberg in 1880. His parents were the merchant Max Schwed (1853-1930) and Ida Schwed, née Hirnheimer (1859–1928).

The property was acquired by Amschel Mayer von Rothschild in 1809 and built on by the architect Philipp Jacob Hoffmann with a representative building in the style of Frankfurt Classicism. From 1813, it functioned as the trading office of the company M. A. Rothschild & Söhne. The location and character of the building reveal much about the social status of the Rothschild family at the time.

The Munich address book from 1910 contains the following entry: Krämer Max & Co, (owner Max Krämer u. Louis Levi), Bank- und Wechselgeschäft, Dienerstr.23 Entres. T. P. 881 - Max Krämer was born in Munich on August 22, 1864. He came from a wealthy family of bankers and ran his own financial institution. In 1891, Max Krämer married Clementine Cahnmann, born on September 17, 1873 in Rheinbischofsheim. The marriage remained childless. The global economic crisis and the New York stock market crash in October 1929 led to the end of the Max Krämer & Co. bankruptcy was inevitable.

Julius Klein, born in Meisenheim on June 30, 1871, had been registered in München at Blumenstra<e 38/IV since 1898, coming from Speyer. He founded the well-known shoe store Julius Klein in Munich. The following entry can be found in the München address books for the years 1903-1911: Klein Julius, branch of Speiers Schuhwaren-Haus, Kaufingerstr.15, Tel.649, apartment Karlsplatz8/3. From 1912 the new entry: Klein Julius, Schuhwarenhaus, Spezialhaus 1.Ranges für moderne Schuhwaren. Exclusive sale of the legally protected brand "Schuhklein", Kaufingerstr.15T u. Bayerstr.7a, Wohn.

The address book of the city of Nürnberg from 1923 contains the following entry: Bing Spiele und Verlag, G.m.b-h., Badstraße 3, Betrieb: Aufseßplatz 18.

The address book of the city of Nürnberg from 1923 contains the following entry: Bing Glas- und Keramik-Kommanditgesellschaft, Fabrikation und Vertrieb von Glas,- Keramik und Steingutwaren, Dianastraße 104.

Carl (Charles) David, a native of Homburg/Saar, founded a leather goods store at 51 Wormser Strasse in 1824. Carl David was married to Franziska Gernsheim, who was born in Worms. The couple had thirteen children - August,1825 -1845,- Jakob Theodor,1826 - 1898, Cornelius,1828 - 1906,- Caroline,1829 -1909,- Adolf,1830 -1904,- Emilia, 1831 - 1837,- Julius,1833 - 1868,- Auguste,1834-1910,- Amalie,1836-1896,- Gustav,1837, - Rosalie,1841-1906,- Bertha,1845-1936 and Nathalie 1847-1924. From 1855 to 1872, Carl David headed the Jewish Community of Speyer.