Contributor biographical information for Advancing Variable Star Astronomy : The Centennial History of the American Association of Variable Star Observers / Thomas R. Williams, Michael Saladyga.

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Tom Williams is the AAVSO Historian and has served in AAVSO leadership positions for over 20 years, including twice as president. He earned a Ph.D. in History from Rice University in 2000, after spending over thirty years as an industrial chemist and manufacturing manager. Since then, Dr Williams has served as a senior editor for the Biographical Encyclopedia of Astronomers (Springer, 2007) and has written forty-three entries for that work. Over the past twenty-five years he has published book chapters, encyclopedia entries and over thirty articles and book reviews.

Library of Congress subject headings for this publication:
American Association of Variable Star Observers.
Astronomical observations -- United States -- History
Variable stars -- Observations -- History.
SCIENCE / Astronomy -- bisacsh.