In the address book for Frankfurt am Main and surroundings 1923 is in III.part - trade and business - in the section " Bankgeschäfte " the following entry: Oppenheimer,Lincoln Menny, Neue Mainzer Str.66,68. T Büro Hansa 9274  and following. Börse Hansa 9278 - Fernruf 66-68. In the same address book in the alphabetical section is the following entry: Lincoln Menny Oppenheimer, Bankgeschäft, Neue Mainzer Stra;e&szlig 66-68, Tel.Hansa 9274 and following, Börse Hansa 9278 (Fernruf 66-68),(Pscheck-K.1278). Inh. Osk.Frankl.Oppenheimer, Georg Lewandowsky and Max Morel, Prok.

Artur Lauinger was born in Augsburg in 1879 as the son of the hop merchant Heinrich Lauinger and his wife Flora, née Liebmann.

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.