Daniel
Kirkwood

Indiana University


David Starr
Jordan

Stanford (Neurotree)


Joseph
Swain

Swarthmore (MathTree)


Hermann Amandus
Schwarz

Universität Berlin (MathTree)


Johann Benedikt
Listing

Universität Göttingen (Physics Tree)


Heinrich
Maschke

Chicago (MathTree)




Wilbur Adelman
Cogshall

Indiana University

Vesto Melvin
Slipher

Lowell Observatory
(Options)

Henry L.
Giclas

Lowell Observatory

Vesto SlipherX