Carl
Charlier

University of Lund


Elis
Strömgren

Copenhagen University (Physics Tree)


Carl Ernst Heinrich
Schmidt

Kaiserliche Universität Dorpat (Chemistry Tree)


Arthur Joachim
von Oettingen

Kaiserliche Universität Dorpat (Meteorology Tree)


Wilhelm
Wundt

University of Leipzig (Neurotree)


Wilhelm Friedrich
Ostwald

Leipzig University (Chemistry Tree)


Thorvald
Thiele

Copenhagen University (Physics Tree)


Hans Emil
Lau

Urania observatory, Copenhagen (Physics Tree)


Hugo
von Seeliger

Universität München


Karl
Schwarzschild

Astrophysical Observatory Potsdam (Physics Tree)




Gerard P.
Kuiper

University of Arizona


Carl
Charlier

University of Lund


Elis
Strömgren

Copenhagen University (Physics Tree)


Carl Ernst Heinrich
Schmidt

Kaiserliche Universität Dorpat (Chemistry Tree)


Arthur Joachim
von Oettingen

Kaiserliche Universität Dorpat (Meteorology Tree)


Wilhelm
Wundt

University of Leipzig (Neurotree)


Wilhelm Friedrich
Ostwald

Leipzig University (Chemistry Tree)


Thorvald
Thiele

Copenhagen University (Physics Tree)


Hans Emil
Lau

Urania observatory, Copenhagen (Physics Tree)


Hugo
von Seeliger

Universität München


Karl
Schwarzschild

Astrophysical Observatory Potsdam (Physics Tree)




John M.
Schaeberle

Lick Observatory


William Wallace
Campbell

Lick Observatory


William Wallace
Campbell

Lick Observatory


Robert Grant
Aitken

Lick Observatory


Robert Williams
Wood

Johns Hopkins (Physics Tree)


William Wallace
Campbell

Lick Observatory


Joseph Haines
Moore

UC Berkeley


Leopold Friedrich Anton
Ambronn

Universität Göttingen










Kaj Aage
Strand

U.S. Naval Observatory






Otto
Struve

UC Berkeley






James Craig
Watson

University of Michigan


John M.
Schaeberle

Lick Observatory


William Wallace
Campbell

Lick Observatory


Henry A.
Rowland

Johns Hopkins (Physics Tree)


Heinrich
Rubens

Universität Berlin (Physics Tree)


Robert Williams
Wood

Johns Hopkins (Physics Tree)


John M.
Schaeberle

Lick Observatory


William Wallace
Campbell

Lick Observatory


Joseph Haines
Moore

UC Berkeley


Charles Donald
Shane

Lick Observatory

Charles Bruce
Stephenson

Case Western
(Options)

Richard Baessler
Herr

University of Delaware

Charles StephensonX