The lists here include only Nobel laureates who are Jewish by the strict definition of Halacha (interpretation of the laws of the Hebrew Scriptures) that requires being born to a Jewish mother or formal conversion to Judaism. Definition of being Jewish is similar to nationality and is independent of personal beliefs. See explanations on the question of "Who is a Jew?"
The resources used for identification of the background of the laureates includes the autobiographies of the laureates, Encyclopedia Judaica, historical documents, and personal correspondence with some of the laureates themselves.
Bereshit (Genesis) 12:3: "...and all peoples on earth will be blessed through you."