1896–1910 1911–1913 1914–1918 1919–1926 1927–1930 1931–1936 1937–1940 1941–1943 1943–1946 1946–1957 1958–1969 1970–1976

1911–1913

Schwester Grace mit Katze
Sister Grace with cat, 1917

Max Pfeiffer moved in May 1911 to Hattingen an der Ruhr, where his stepfather had been named director of the Realgymnasium. Attended the Gymnasium in Hattingen. Max Peiffer was a good pupil, interested in physics and the natural sciences. His half-sister Grace Watenphul was born in 1913.