Leo
Königsberger

Universität Heidelberg (MathTree)


Hugo
Gyldén

Stockholms observatorium


Max
Wolf

Universität Heidelberg (Physics Tree)










Ira
Young

Dartmouth


William
Harkness

U.S. Naval Observatory














Frank Bradshaw
Wood

UF Gainesville

Yoji
Kondo

NASA Goddard Space Flight Center
(Options)

Yoji KondoX