Hans Albrecht Eduard Bethe was a German-American physicist who made major contributions to nuclear physics, astrophysics, quantum electrodynamics and solid-state physics, and received the Nobel Prize
Hans Bethe
Hans Bethe, aged 12, with his parents
Bethe's Los Alamos Laboratory ID badge
Hans Bethe lecturing at Dalhousie University, 1978
Edward Teller was a Hungarian-American theoretical physicist and chemical engineer who is known colloquially as "the father of the hydrogen bomb" and one of the creators of the Teller–Ulam design insp
Hans Bethe
…He wrote to his mother: I am about the leading theoretician in America. That does not mean the best. Wigner is certainly better and Oppenheimer and Teller probably just as good. But I do more and talk more and that counts too. On March 17, 1938, Bethe attended the Carnegie Institute and George Washington…
The Hungarian passport Teller carried when he entered the United States in 1935.
Teller's ID badge photo from Los Alamos