Detmar Schwarz was born in Greiz in 1851 as the son of the Greiz merchant Samuel Schwarz and his wife Elisabeth. In 1876, he founded the company Samuel Schwarz Söhne, Mechanische Weberei together with his brother Max Schwarz. Detmar Schwarz lived in Papiermühlenweg 90 from 1885 at the latest until at least 1892 and then for a short time in Papiermühlenweg 5. In 1894 he resigned from the company to leave Greiz.

In Gartenweg 2 lived since spätestens 1910 Paul Heller with his wife Edwig (née Levi) and their children Emilie (1896) and Hans (1898). Paul Heller was born in 1866 as the son of Moritz and Emilie Heller (née Schwarz, *1838). His mother died in the same year of his birth. In 1895 Paul Heller lived with his father at Bahnhofstra;e 9, in 1898 at Heinrichstra;e 2, from about 1901 to 1905 at Elsterstra;e 30 and in 1908 at Gartenweg 5. After Paul Heller's uncle Max Schwarz died in 1922, Paul Heller and five relatives became owners of the company Samuel Schwarz Sohn.

Jette Cahn, the daughter of the merchant and cord merchant Gustav Cahn and his wife Mina, née Bayer, born in Bayreuth in 1874, had four more siblings - Ludwig (1873), Ernst (1875), Heinrich (1878) and Rosa (1883). Jette Cahn remained single throughout her life. She lived in the house owned by her brother at Richard-Wagner-Strasse 7, where Heinrich Cahn ran a wholesale and retail business in haberdashery, white goods and manufactured goods. Jette Cahn lived on the 1st floor above the business premises. Above her on the 2nd floor was her brother Heinrich.

The Jewish businessman Samuel Schwarz (*26 March 1810) lived with his wife Elisabeth (née Bloch, *1818) since 1873 at the latest in Marienstraße 24 in Greiz and had with her eight children (Laura, Lina, Rosa, Hulda, Agnes, Emilie, Detmar, Max). In 1840 the former wool merchant settled in Greiz together with Ephraim Schulhof and was incorporated in the same year. In 1850 he was accepted into the religious community of Lomnička (Czech Republic).

In 1892, the Villa Samuel Schwarz was built in the Zeulenrodaer Stra;e 8, right next to the company premises of „Samuel Schwarz Söhne, Mechanische Weberei“. The builder was the Jewish merchant Samuel Schwarz, who had settled in Greiz in 1840 and founded a family here.

There was an old cemetery In den Gärten" from 1839. Although it was designated as a cemetery, it was not used. The municipality had to sell it in 1938.

The new cemetery Am Sandberg was occupied from 1832 to 1940. There are 53 gravestones here today.

In 1876, the brothers Max and Detmar Schwarz founded the company Samuel Schwarz Sarns, Mechanical Weaving Mill at 6 Zeulenrodaer Strasse. Her father Samuel Schwarz (1810-1889) settled in Greiz in 1840 as one of the first Jewish businessmen. In 1894 Detmar Schwarz left the company and left Greiz, whereupon his brother renamed the company „Samuel Schwarz Sohn, Offene Handelsgesellschaft“. After the death of Max Schwarz in 1922, the company was transformed into a limited partnership.

In the Jüdisches Adressbuch für Groß-Berin edition 1931/1932 the following entry is found - Baruch Philipp, Wilmersdorf, Kaiserallee 47.