S. Chandrasekhar's interactions with graduate students in his more tha
n a quarter century at Yerkes Observatory are described. His graduate
teaching, Ph.D. thesis students, colloquia and colloquium series, and
seminar series were all important aspects of this side of his scientif
ic research career. His managing editorship of The Astrophysical Journ
al, his one experience in observational astrophysics, a second paper h
e wrote describing some of the early observational work at Yerkes Obse
rvatory, and a third on ''the case for astronomy'' are all discussed.
A famous myth about one of his courses is corrected, and the circumsta
nces under which the ''S. Candlestickmaker'' parody was written are re
counted. Chandra's computers, recruited in the Williams Bay community,
are mentioned. A complete or nearly complete table of all the thesis
students who received their Ph.D. degrees under his supervision, at Ye
rkes and on the campus in Chicago up through his last one in Astronomy
and Astrophysics in 1973, is presented, with references to their publ
ished thesis papers.