With which German–American biophysicist who helped launch the molecular biology research program in the late 1930s did Salvador Luria win the Nobel Prize in Physiology or Medicine in 1969? 
Salvador Luria:  He won the Nobel Prize in Physiology or Medicine in 1969, with Max Delbrück and Alfred Hershey, for their discoveries on the replication mechanism and the genetic structure of viruses. Max Delbrück: Max Ludwig Henning Delbrück, ForMemRS (September 4, 1906 – March 9, 1981), a German–American biophysicist, helped launch the molecular biology research program in the late 1930s.
Max Delbrück