The Israelitische Gartenbauschule Ahlem was a Jewish school founded in 1893 as the "Israelitische Erziehungsanstalt zu Ahlem bei Hannover". It served as a supra-regional, boarding school educational institution for horticulture and various trades. Its students came from all over Germany, from Eastern Europe, and occasionally even from Palestine and other countries; its graduates were soon to be found all over Europe, in Palestine, North and South America, and in the German colonies. The founder was the Hanoverian banker Alexander Moritz Simon.

Eugen Neumetzger was born on February 3, 1896 in Oberdorf am Ipf ( Bopfingen-Oberdorf ). His parents were Sigmund (Seligmann) Neumetzger and Elise Neumetzger, née Bacharach. Eugen Neumetzger was a partner of the company " Ladenburger & Wolf " from 1919-1937, später " Wolf & Neumetzger ". The company was a member of the Verband des deutschen Schuhgroßhandels from 1907-1937.From 1911-1937 he was a member of Zionistische Vereinigung für Deutschland (ZVfD) and from 1932-1937 a board member of the Syn. Gem. Karlsruhe.

The lawyer and notary Dr. Steffen Kann and the lawyer Dr. Neander Fromm ran together a law firm at Roßmarkt 12 in Frankfurt am Main.

David Stern was a member of the board of the Graz Jewish Community.

Dannie N. Heineman (1872-1962) was born in the USA to German-Jewish emigrants and remained an American citizen throughout his life. After his father's death, he and his mother returned to Germany and lived in their native Hanover from 1883. Heinemann graduated from the Technical University of Hanover as an electrical engineer, worked for AEG Berlin and other companies, and made a career as a manager for a large Belgian electrical corporation. His mother died in Hanover in 1927.

In the address book St. Johann, Saarbrücken, Malstatt-Burbach and surrounding area 1900 find the following entries

- Lyon Adolf We., merchant, Bahnhofstraße 66

- Lyon Alfons, merchant, Bahnhofstraße 66

- Lyon Emanuel Wwe., merchant, Bahnhofstraße 66

- Lyon Julius, procurist, Bahnhofstrasse 66