Izrael Kalmanowicz Poznanski (b. 1833 in Aleksandrów; d. 1900 in Lodz, Poland) was a textile magnate and philanthropist in Lodz, and the husband of Elenora Hertz Poznanski.

One of the most eminent entrepreneurs in the Russian-dominated part of Poland, Poznanski was the son of a Jewish merchant of Kowal, who built up a textile empire and became, next to Karl/Karol Scheibler, the most important manufacturer of Lódz, a 'multicultural' city mainly populated by Poles (Catholic and Jewish) and Germans. The bourgeoisie of these groups was described in Reymont's novel about Lodz The Promised Land (Ziemia Obiecana), later filmed by Andrzej Wajda.

Since 1989, the city of Lodz has rediscovered its industrial heritage, a unique ensemble of architecture, preserved despite two World Wars. The sites linked to Poznanski's memory are among the most prominent of the city: the huge factory buildings in Ogrodowa Street; the nearby Poznanski Palace, today a museum (including an exhibition about Arthur Rubinstein, another 'Lodschermensch'); and Poznanski's marble tomb in the Jewish cemetery, the biggest Israelite graveyard in Europe. Although Poznanski was devout to the belief of his ancestors, it must be noted that the generous style of his grave monument is scarcely compatible with Jewish tradition, as that religion forbids any luxury for funerals and tombs. (From Findagrave - copied by the author.)

The mausoleum of Izrael and Eleonora Hertz Poznański is probably the largest Jewish tombstone in the world. The mausoleum and mosaic covering the inside of the dome were restored in 1993.

Henryk Grohman (1862 – 1939) was a Polish industrialist of German origin.

Born in Lodz, he was the son of Ludwik Grohman, who participated in the manufacturing of a cotton plant with his own father, Traugott Grohmann. Henryk Grohman built upon his father's legacy and enlarged the plant, which became a modern textile factory.

Henryk studied in Great Britain and Switzerland.

Henryk Grohman built a villa in 1892, designed by Hilary Majewski, which became a centre of culture for Lodz. Music concerts took place in the villa, while artists such as writer Henryk Sienkiewicz and composer Ignacy Paderewski were hosted there.

Grohman was an avid art collector, and items in his possession included a 1734 Guarneri violin and the Lauterbach Stradivarius, which he often played himself.

His entire estate was bequeathed to the Polish state.

Karl Wilhelm Scheibler (1 September 1820 – 13 April 1881) was a German - Polish industrialist.

Scheibler was born in Montjoie (today Monschau) in the Prussian Province of Jülich-Cleves-Berg into a family of textile fabricants. He attended school in Monschau and Krefeld and received a practical education at his uncle's Worsted factory at Verviers (Belgium). In 1839 he worked for Société anonyme John Cockerill, a well known producer of machinery construction at that time.

Because of the riots of the Spring of Nations in 1848 Scheibler decided to leave Germany and moved to Ozorkow in Congress Poland, where his uncle, Friedrich Schlösser, had operated a textile factory since 1816. After Schlösser's death he became its commercial director. Scheibler married Anna née Werner, a niece of Schlösser, on 16 September 1854. In 1852 Scheibler and his partner Julius Schwartz bought a plot at Lodz and started to build a machinery factory. In October 1854 Schwartz sold his share to Scheibler for 10,000 Ruble, making him the sole-owner of the factory.

In 1855, Scheibler founded a spinning mill with 34 frames and a steam engine of 40 horsepower. In 1857, Scheibler employed 180 labourers and earned a turnover of 305.100 Ruble in 1860. Scheibler made large profits after cotton prices in Europe increased because of the American Civil War and sold his stock at triple the price,[4] he became known as the "King of the Cotton and Linen Empires of Lodz". In 1870 1,911 employees worked in his factory, which was the third largest (9.3 percent) cotton producer of Poland.

Scheibler's factory continued to prosper and he bought several smaller mills in the districts of Zarki and Ksiezy Mlyn. After a fire destroyed the factory at Ksiezy Mlyn in 1874, Scheibler rebuilt it with 88.000 spindles and built his own "Kingdom" of Ksiezy Mlyn with houses for 321 families, a fire station, schools, shops and a hospital Scheibler was known for his social engagement and supported the foundation of a municipal credit association, the Commercial Bank of Lodz (Bank Handlowy) in 1872 as well as the construction of a Lutheran and a Catholic Church.

In 1880, he transformed his enterprise into a stock corporation with a share capital of 9 million Ruble.

Scheibler died on 13 April 1881 in Lodz and was buried at the Protestant Cemetery of Lodz in a mausoleum designed by the Warsaw architects Joseph Dziekonski and Edward Lilop