Julius
Mac Leod

Ghent University (Chemistry Tree)


Leonard Salomon
Ornstein

Utrecht (Physics Tree)


Paul
Ehrenfest

Leiden (Physics Tree)


Marcel G.J.
Minnaert

Utrecht (Physics Tree)






Fred
Hoyle

Cambridge


Leon
Mestel

Trinity College, Cambridge


Walter
Baade

Mount Wilson Observatory


Allan Rex
Sandage

Mount Wilson-Palomar (Physics Tree)




Simon David Manton
White

Max-Planck-Institut für Astrophysik

Amina
Helmi

RUG
(Options)

Laura Virginia
Sales

UC Riverside (Physics Tree)

Amina HelmiX