Max
Born

Edinburgh


Niels
Bohr

Copenhagen University


Ralph H.
Fowler

Cambridge


Edward Arthur
Milne

Oxford (MathTree)




Leon
Mestel

Trinity College, Cambridge


Allan Rex
Sandage

Mount Wilson-Palomar






Haldan N.
Cohn

Indiana University

Robert C.
Berrington

Indiana University
(Options)

Robert BerringtonX