A Jewish cemetery probably existed from the middle of the 19th century until about 1900 at Harkortstraße, corner Schwarzwaldstraße. Further details are not known. Whether the gravestones disappeared or were moved to the Lirich cemetery cannot be determined exactly. Today, a green area has been built on the site of the cemetery. A memorial stone reminds of the former cemetery.

Here was a cemetery from 1912 in the northeastern part of the municipal cemetery. The first grave laying took place around 1918, the last around 1930. During the war, the cemetery was partially covered by a bunker, today the eastern part is probably under the highway 516. In the year  1946, some dead were reburied with the stones to the Lirich cemetery. The cemetery was bought by the city and is used differently today. The last remains of the cemetery were moved to the municipal cemetery in Lirich in 1970. There are no reliable dates.

About the oldest cemetery in Oberhausen is quite  little known. It is located on the site of the former municipal cemetery at the Kaisergarten. He has been lifted around 1922, the region was used as a slag heap of a nearby ironworks. There are no documents about the whereabouts of the gravestones. Possibly they were brought to the Liricher Westfriedhof at the Emscher street. No traces are found there.

Hermann and Frieda Bach ran the department store H. Bach at Markt 31 in Mittweida until the death of Hermann Bach in 1925. After that  his wife Frieda Bach and son Herbert Bach continued to run the department store. When the National Socialists came to power in 1933, the Bach department store also suffered from the boycott calls and had to close in 1935.Herbert Bach continued to operate a small store after the closure. On November 9, 1937, Herbert Bach was killed in a fall from the 2nd floor of the stairwell into the courtyard of the district court.

Isaac Oppenheim, born in 1805 - died in 1872 laid down his Jewish first name after baptism and was henceforth called Julius Ernst Oppenheim. His father Salomon Oppenheim, married to Judith Bondy, was for many years one of the heads of the liberal German Israelite community in Hamburg and chairman of the Advance Institute, which was founded in 1816 as a branch of the Israelite Poorhouse. Julius Ernst Oppenheim was the founder of the parity Jewish-Christian Julius-Ernst-Oppenheim-Stift, which is supported by the Vaterstädtische Stiftung and still exists today.

Next to the Libeskind building and the old building, two garden areas were constructed to create an atmosphere in which visitors* should also feel comfortable outside the exhibition rooms.