Olof Jernberg

Later, he worked with Karl Müller, and became a private student of Eugen Dücker, with whom he studied landscape painting until 1879.

[1] He also came under the influence of the Barbizon school, especially the works of Jean-François Millet and Théodore Rousseau, and developed a preference for painting en plein air.

In 1889, together Heinrich Hermanns, Eugen Kampf and Helmuth Liesegang, he was one of the co-founders of the "Lucas Club"; an organization opposed to the exhibition policy of the Kunstverein für die Rheinlande und Westfalen [de].

One of their goals was to combine the stylistic approaches of the Barbizon and Hague schools with the aesthetics of Impressionism.

Two years later, the Lucas Club was subordinated to the new Freie Vereinigung Düsseldorfer Künstler [de].