The wholesaler David Regensburger from Fürth bought a bankrupt weaving mill in Hof in 1871. In 1876, David Regensburger acquired the site of Grunwald`sche Dampf-Bade- und Waschanstalt and expanded the weaving mill. In 1893, David Regensburger then set up a branch operation with 160 looms in Fürth. In 1917, the weaving mill in Fürth was closed down due to the war. The looms were transferred to Hof. Owners around 1900 were Ad. Max and Alb. Regensburger. In 1921 the company was transformed into a joint stock company under the management of D. Regensburger.

Before Hermann Oppenheimer opened his music store in 1867, he made his living as a music teacher. Music determined his life. After the composition of a polka - mazurka followed in 1858 a harmonium concert in the town hall of Hameln. For the "50th anniversary of the German gymnasts" in 1861 his "Opus 10" was printed. To the sale of music he was also still active as a concert organizer and had many merits for the musical life of Hameln.

The origins of the company go back to 1861 when Max Landauer set up a distillery and liqueur factory in the Kirchhöfle in Heilbronn. When in 1866 the brother-in-law Leopold Macholl joined the company, it was named "Landauer & Macholl". In 1874 Leopold Macholl left the company to establish himself in Munich together with his brother. The company name Landauer & Macholl remained. With the construction of a new steam distillery and liqueur factory in 1876 in Karmeliterstraße 15, the company's product range was also increasingly expanded.

Hermann Wollenberger founded a wine distillery and liqueur factory at Äußere Rosenbergstraße 17 in 1888. From 1930, the company was located in the newly acquired property Wollhausstraße 46, - meanwhile under the management of son Alfred Wollenberger, who also lived here with his family. Hermann Wollenberger died on March 24, 1932 in Heilbronn and was buried in the Jewish cemetery. His wife Lina Wollenberger, née Stein was forced into the Jewish old people's home in Herrlingen in 1939. She died there on March 27, 1940 and is also buried in the Jewish cemetery in Heilbronn.

Max Pincus and and his wife Rosa, née Eichenberg  moved from St. Johann an der Saar to Saarbrücken about the end of 1917. At that time, son Ludwig Pincus lost his life as a soldier in France during World War 1. Max Pincus also ran his insurance office in the Heilbronn apartment at Friedensstraße 31. Later, son Walter Pincus joined him. Walter Pincus and his wife Edith, née Oppenheimer emigrated to East Africa in 1939. Daughter Margarethe Pincus was in London in 1942.

A "Moritz Rosenstein - Landesprodukte", Paulinenstraße 10, later Marktplatz 3, is already mentioned in the records based on council records until about 1857. Whether "Isac Rosenstein, Landesprodukte" is the same company is not known, but it is obvious. The company address given above is that of Moritz Rosenstein.

Siegfried Gumpel settled as a lawyer in Heilbronn in 1901 and from 1923 headed the law firm of Dr. Gumpel, Koch & Dr. Scheuer.

Moses, Baruch and Max Reis together ran the woven goods wholesale and retail business Jakob D. Reis. Moses Reis was one of the co-founders of the Israelite religious community Adass Yeshurun, in which he also served as treasurer. One of the Torah scrolls in the possession of the community had been donated on January 11, 1933 by the then headmaster Heinrich Scheuer and Moses Reis.