Marcks in "1939, ....built his own studio building in Berlin, which together with a large portion of his early work was destroyed in an air raid in 1943.
This pioneering Bauhaus artist flourished after the war ended. Encyclopedia Britannica includes details of his post war life:
Marcks is also noted for his sculptures of animals done after World War II, which owe much to the influence of the German sculptor August Gaul. Marcks’s important commissions include war memorials in Cologne and Hamburg. In 1971 the Gerhard Marcks Museum in Bremen was founded. His bronze doors for the convent church at Magdeburg, Germany, were unveiled in 1977.
Cats actually were among the first subjects of his art. This woodcut dates from 1921, and is one of MOMA's 61 pieces of his art.