Prof. Siegmund Huppert was director of the Kyffhäuser Technikum - Polytechnic Institute.

The building temporarily housed a Jewish prayer room.

In the Middle Ages, a prayer room or synagogue was present (see above).  
The Jewish community of the 19th/20th century set up a prayer room for services. Since the 1920s, at the latest since 1931, it was located in the building Pauritzer Straße 54 (the address book of the city of 1931 calls here an "Israelite synagogue"). In this building was also the Jewish religious school.  

At the residential building of the Jewish Gronner family in Friedrich-Hofmann-Strasse 7, there has been a memorial plaque since July 1993, erected by John Gronner, who lives in the USA, in memory of his parents, with the inscription: "This business building was built in 1929 by Samuel and Helene Gronner on the site of the former Ilmenau parish office. The Nazi regime of violence deported both of them to certain death in the East on May 5, 1942. This plaque serves their memory and as a constant reminder to future generations of human and mutual tolerance. Date of dedication July 1993."

Max Gabbe opened the Berlin department store in 1903. In 1932 he was second chairman of the Jüdische Gemeinde. 

Siedmund Eichenbronner was the first chairman of the Jewish community in 1932.