Came to the United States, 1936, naturalized, 1941. Intern City Hospital, Nuremberg, Germany, 1925. Resident U. Breslau (Germany) Skin Clinic, 1926-1930, chief radiotherapy department, 1930-1935.
Dermatologist Marshfield (Wisconsin) Clinic, 1936-1965. President Marshfield Clinic Foundation Medical Research and Education, 1960-1965. Clinical associate professor dermatology University of Minnesota Medical School, 1946-1968.
Clinical professor dermatology University of Wisconsin Medical School, Madison, 1965-1973.