Stefan
Banach

Politechnika Lwowska (MathTree)


Kazimierz
Kuratowski

Politechnika Lwowska (MathTree)


Antoni Marian
Łomnicki

Politechnika Lwowska (MathTree)


John L.
von Neumann

Institute for Advanced Study (Physics Tree)


Edward
Teller

Stanford (Physics Tree)


Stanisław Marcin
Ulam

CU Boulder (MathTree)


George F.
Estabrook

University of Michigan



C. N.
Hayes

Penn State
(Options)

C. HayesX