Hirsch Goldstein ran a private „Israelitisches Unterrichts-Institut“ in his house (plan no. 161, today Poppenlauerer Straße 9), where Christian and Jewish boys from the age of 11 were taught foreign languages and commercial subjects, among other things. After Goldstein moved away, the religious community acquired the building in 1895 and set up its Israelite elementary school there. The old school building was sold.

In 1717, the knightly Jews acquired a building (house no. 45, today Neue Strasse 1) for their rabbi. The ritual bath was also housed here.

The founders of the "Gebrüder Stein " segroßhandlung " were the brothers Alexander and Sigmund (Seligmann ) Stein. Alexander Stein was born in Unsleben on April 11, 1848. He was married to Clara Schwab, born on January 17, 1846 in Heidingsfeld. The couple had nine children. In 1876 the family moved to Augsburg. Sigmund (Seligmann) Bein was born on August 24, 1854 in Unsleben. He married Rosa Sondhelm von Kleinlangheim in Würzburg in 1878. The couple had four children. Just two days after moving to Augsburg, Alexander Bein registered the joint wholesale business "Gebr.

The address book of the city of Darmstadt from 1895 contains the following entry: Landau Gustav, Colonnialwaaren- und Delikatessenhandlung, Inh.: Gustav Landau, Maktplatz 7 - Born in Bingen, Gustav Landau was the scion of a traditional family of wine merchants and learned the trade of a merchant before marrying Bertha Hachenburger on August 25, 1878.

The address book of the city of Darmstadt from 1899 contains the following entry: Fuld L. & M., Kurzwaarenhandlung, Inh. Abraham, gen. Adolf Ketsch and Leontine, née Fuld, Ludwigstraße 2. In the address book from 1910 - Fuld L. & M., haberdashery, Inh. Abraham, gen. Adolf Ketsch and Leontine, née Fuld, Kirchstra&szlig 12.

The small cemetery site on Robert-Blum-Strasse in Opladen now only has around 20 gravestones, some of which show clear signs of weathering (destruction).As early as 1968, the city of Leverkusen had a memorial stone erected on the site bearing the following words:

In memory of the Jewish citizens of our city,

who lost their lives during the Nazi era from 1933 to 1945.