After the war, he began his career as an artist full-time, continuing his education, and co-founding the Donnerstag-Gesellschaft (in English, the “Thursday Group”). Between 1947 and 1950, the group organized discussions, exhibitions, events and concerts in the Alfter Castle, near Bonn.
Throughout the 1950’s, he produced thousands of drawings, but struggled physically, emotionally, and financially. In 1956 he suffered his first breakdown, a severe depression, the result of artistic self-doubt and the physical and psychological trauma of his experiences in the war. He was taken in by his first patrons, the van der Grinten brothers, where he was to spend time on his recovery. By 1958 he began exhibiting his work, and in 1959 he married Eva Wurmbach. They had two children together, Wenzel (born 1961) and Jessyka (born 1964).% | % | % | % | % | % | % | % | % | % | % | %