Leopold Friedrich Anton
Ambronn

Universität Göttingen




Felix Christian
Klein

Universität Göttingen


Johannes Franz
Hartmann

Kuffner-Sternwarte


Richard
Schorr

University of Hamburg (Astronomy Tree)


Walter
Baade

Mount Wilson Observatory


Harold F.
Weaver

UC Berkeley




Hermann Carl
Vogel

Astrophysikalische Observatorium Potsdam




Karl Wilhelm
Valentiner

Universität Heidelberg (Astronomy Tree)


Max
Wolf

Universität Heidelberg


Johannes Franz
Hartmann

Kuffner-Sternwarte


Karl
Schwarzschild

Astrophysical Observatory Potsdam


Georges
Lecointe

Royal Observatory of Belgium (Astronomy Tree)


George A.
Van Biesbroeck

Yerkes Observatory (Astronomy Tree)


Arthur
Schuster

University of Manchester


Horace
Lamb

University of Manchester


Robert Alfred
Herman

Cambridge (MathTree)


Ernest William
Barnes

Cambridge (MathTree)


Edmund Taylor
Whittaker

Cambridge (MathTree)


Alfred North
Whitehead

Harvard (Neurotree)




Otto
Struve

UC Berkeley


George Howard
Herbig

University of Hawai'i at Manoa

Douglas K.
Duncan

Chicago
(Options)

Douglas DuncanX