Max Ludwig Henning Delbrück , FRS ( September 4 , 1906 - March 9 , 1981 ) , a German-American biophysicist , helped launch the molecular biology research program in the late 1930s .
Max Ludwig Henning Delbrück ( September 4 , 1906 - March 9 , 1981 ) was a German-American biophysicist and Nobel laureate .