The entrepreneur Alexander Beer from Moravia lived from 1911 with his wife Adelheid née Gyurits (1867–1955) in Baden near Vienna. Over the years, he put together an extensive art collection focusing on nineteenth-century Austrian art.

In 1913, Betty Blum married the entrepreneur Noe Blum from Poland, who had a business in Munich dealing in antiques, oil paintings, old and new furniture, gold and silverware.

In 1919, the Vienna gallery owner and art collector Lea Bondi became Prokurist (authorized signatory) of Kunsthandlung Würthle & Sohn Nachf. at Weihburggasse 9 in Vienna's 1st district.

Otto Brill, a chemist with a doctorate, was the second oldest of four children of the Jewish leather merchant Mori(t)z Brill and his wife Amalie, née Thein.

The Brno lawyer Arthur Feldmann started collecting art in the early 1920s.

Adella Taubmann arrived in Vienna in the 1920s, where she married the businessman Max Feuer in 1927, divorcing him in 1934.

Ottilie Grabner registered her antiques and art business in November 1929 at her home address on Linke Wienzeile in Vienna'

The industrialist and banker Rudolf Gutmann, partner in Gebrüder Gutmann and Bankhaus Gebrüder Gutmann, owned an extensive art and book collection. He started collecting in 1906.

Carl Heumann lived from 1908 in Chemnitz, where he was a banker in Bankhaus Bayer und Heinze (from 1908 Prokurist, from 1920 co-owner of the private bank) and vice-consul of Portugal.

Rudolf Hintermayer, who later became a lawyer and art collector, was born in Waidhofen an der Ybbs in 1917 as the youngest son of Rudolf Hintermayer, who worked in the Vienna municipal administration and later became Deputy Director of Städtische Gaswerke, and his wife Auguste,

Born in Mokrin, Rudolf Paul Hirschenhauser attended the General School of Painting and the Special School of Graphic Arts at the

Eva Ida Benjamine Kantor was the second of three children of Hugo Kantor and his wife Wilhelmine Sofie Hedwig, née Preyss von Steinbühl.

Maximilian Kellner, a merchant born in Moravia, lived from 1932 with his wife Katharina, called Käthe (née Pollatschek, born 1884), at Praterstraße 17 in Vienna's 2nd district.

Hermann Emanuel Kolisch was the son of the banker Robert Kolisch and his wife Paula, née Löw. His father had a private art collection in the parental apartment at Porzellangasse 9 in Vienna's 9th district.

Hans Körbel moved in the early 1920s with his parents and younger brother Robert Körbel from Bielitz (now Bielsko-Biala) in Silesia to Vienna, where they lived at Neulinggasse 18 in the 3rd district.

At the age of just sixteen, Luise Kremlacek started working in 1920 as a saleswoman at Galerie Würthle & Sohn Nachf.

Kunst und Wohnung, R. Lorenz was founded in 1919 at Josefstädter Straße 21 in Vienna's 8th district.

After his father's death in 1922, Hans Leinkauf took over Speditionsgeschäft Josef J. Leinkauf in Helferstorferstraße in Vienna's 1st district.

In May 1939, the joiner and art dealer Karl Löscher acquired a trade licence for original paintings and antiques, upon which he opened Kunsthandlung Karl Löscher, an independent art dealership at Spiegelgasse 19 in Vienn

The Vienna-born railway official Alfred Menzeles, who changed his name to Menzel in 1899, was married to Margarethe, née Kornblüh. With their two sons Hans and Otto, the family lived in Vienna's 3rd district at Rechte Bahngasse 12/3 since 1931.

Edith Oser-Braun came from the Braun family of entrepreneurs, who founded a bridal outfitting shop in Vienna in 1892 and, with further branches in Karlsbad and Berlin in 1914, advanced to become a supplier to the Imperial and Royal Court. The company E.

The businessman Adalbert Bela Parlagi, registered in Vienna from 1913, married Hilda, née Hock, in December 1919. They had two children, Hedwig Elisabeth and Franz Richard. At first the family lived at Türkenstraße 25 in the 9th district.

After the death of her husband Anton Penizek (1868–1937), Melanie Penizek took over the antiques dealership established in 1934 at Spiegelgasse 19 in Vienna's 1st district and continued it initially as his widow.

Galerie Dr.

Oskar Reichel, a Jewish doctor living in Vienna, was a major art collector. He was inspired to start collecting by the works of the Austrian painter Anton Romako, which he says he saw for the first time around 1900.

Marianne Schmidl, one of the first women ethnologists in Vienna, worked as an intern at the Vienna Museum of Folk Life and Folk Art while still a student.

The engineer Ernst Zix from Magdeburg joined the NSDAP in 1933. He was stationed in Vienna as a staff officer from 1938 to 1941 and as a lieutenant-colonel for a short time in 1943.