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50-Year Member Anniversaries

GSA salutes the following members and Fellows on their 50-year membership anniversaries. We appreciate
their dedication and loyalty to GSA. To view a full list of members who have surpassed the 50-year mark,
go to https://rock.geosociety.org/membership/50YearFellows.asp. Asterisks indicate GSA Fellows.

Patrick Leon Abbott* John Erwin Damuth* David A. Link L. Don Ringe
Buzz Aldrin* William P. Dillon* J.G. Liou* Brian A. Robinson
Ina B. Alterman* Jim Alan Drahovzal* Leon E. Long* Edwin S. Robinson*
Robert S. Andrews Joe W. Fandrich Bruce P. Luyendyk* John Brandt Roen*
Walter Joseph Arabasz Michael E. Field* Richard F. Madole* Donald D. Runnells*
Tanya M. Atwater* Donald W. Fiesinger Robert J. Malcuit Douglas Smith*
Paulo F. Bahia-Guimaraes Andrew M. Gombos Jr.* Vincent Matthews III* Arthur W. Snoke*
George L. Bain Stan C. Grant Richard L. Mauger* James M. Soule
Norman G. Banks Frederick T. Graybeal* John E. Mawby Daniel P. Spangler
Charles S. Bartlett Jr. Hershel Gene Hawkins Fred W. McDowell* Dennis M. Sparks
Glenn Rolf Bauer James R. Hein* Robert J. McLaughlin* Douglas W. Sprague
John C. Behrendt* Herwart Helmstaedt* Robert G. McWilliams* John C. Steinmetz*
Stig M. Bergstrom* Robert H. Higgs Calvin F. Miller* Gary F. Stoney
Daniel Bernoulli* Alan D. Howard* James P. Miltimore James M. Stroh
Richard S. Bishop* Bryan L. Isacks* William E. Motzer John S. Stuckless*
Bill Bonnichsen* Michael Jaron Roger A. Newell John R. Sumner*
John Van Brahana* Raymond L. Joesten* Alan R. Niem* Don A. Sundys
Martin L. Bregman Robert J. Kamilli* Bruce James O’Connor Robert Hadley Sydnor*
Bruce A. Brown Alan E. Kehew* Stephen D. Olmore Patrick T. Taylor*
David L. Campbell Christopher G. Kendall David M. Patrick James T. Teller*
Kerry J. Campbell Eva B. Kisvarsanyi Sr.* Hans O. Pfannkuch* Peter C. van de Kamp
William F. Cannon* Huybert Marinus Kluijver Hermann W. Pfefferkorn* W. Randall Van Schmus*
Edith Andrea Daniel H. Knepper Jr.* Robert Warren Pinker John D. Vitek*
Chasen-Cerreta Robert L. Kovach* J. Preston Prather Brian White
Jon J. Clague* Robert D. Lattanzi G. Michael Reimer David F. Work
Russell G. Clark Jr.* Robert C. Laudon Richard L. Reynolds* Robert H. Wright
Richard L. Cooley* David A. Lindsey* Larry R. Rhodes*

10 GSA Today | July 2020