In the supplement to the Kgl. Preuss. Staatsanzeiger 30. July . No.176  -  1869 the following note is found : In our company register it has been noted today at the general partnership registered under No.224 " Ferdinand Frankfurther " that the company name has been changed to " Ferdinand & Moritz Frankfurther ". - Breslau, July 24, 1869 - Royal City Court Breslau, Department 1.

Leo Jogiches was one of the leading figures of the Spartacus group, along with Rosa Luxemburg and Karl Liebknecht. However, he is not as well known as Luxemburg and Liebknecht, as he worked in the background. Jogiches frequently changed his places of residence and used different pseudonyms to avoid being shadowed by the Political Police. The move to the corner house at Schwarzastrasse 9 in Berlin-Neukölln in September 1915 was probably also a tactical measure, since the apartment had several escape routes. Jogiches lived there as a subtenant.

“Talberg Museum: Europe’s Most Visionary Jewish Sculptor Museum.” — W. White, New York. In 2021, it celebrated its 10th anniversary.

In the Jüdischen address book Frankfurt am Main 1935 the following entry is found: Neuburger & Maier, Ledergroßhandlung, Mainzer Landstraße 59 - 63.

In the post-war period (1957) seat of the Jewish National Fund. Beginning and end of use unknown.