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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.

David M. Abbott* Jimmy F. Diehl Walter M. Leis. Michael L. Sargent
Thomas H. Anderson* Donald Robert Dietrich Robert A. Levich* Norman M. Savage*
Bruce E. Archinal Julie M. Donnelly-Nolan* Barbara Holland Lidz Bruce A. Schell
Raymond E. Arvidson* Michael J. Dwyer David W. Love* Lane D. Schultz*
Randal Jack Ashley Mary C. Eberle James I. Lyons David Richard Schwimmer
Genevieve Atwood* David F. Fenster John Maddry Graig D. Shaak
Steven A. Austin John R. Fielden Douglas Maercklein John M. Sharp Jr.*
Frederick W. Bachhuber Charles W. Finkl Jr. Alberto Marcos Stephen L. Shaw
Brian G. Barber Charles Thomas Foster Jr.* Helaine Walsh Markewich* Robert J. Shedlock
Mervin J. Bartholomew* Robert L. Fuchs* James M. Mattinson* Jay L. Smith
Myrl E. Beck Jr.* Vicente Jose Fulfaro Florentin J. Maurrasse Michael Alexis Smith*
John W. Bell* Linda Provo Fulton David James McBride Mitchell D. Smith
Earl H. Bennett M.C. Galloway Judith A. McKenzie* Norman B. Smyers
Herbert S. Bensinger Phillip Lee Garbutt David L. Meyer Steven G. Spear
Evelynne M. Berg John M. Garihan Douglas G. Mose William Speidel
Antony Robert Berger David G. Gee* Bimal Mukhopadhyay Steven M. Stanley*
Suzanne Beske Diehl Gerard J.B. Germs* Carl W. Myers* Edward F. Stoddard*
Gary N. Bigham Jimmy Goolsby Douglas D. Nelson William D. Stuart
Robert Blackstone James W. Granath William D. Nesse Edmund Stump*
John Anthony Blair James G. Grimes Elisabeth G. Newton* Charles F. Sutphen
Frederick B. Bodholt Francis X. Groselle Peter A. Nielsen Sanford A. Taylor
Jean E. Bogner Timothy L. Grove John S. Oldow* Jorn Thiede*
J. Briedis John H. Guswa Donnie Franklin Parker* Peter R. Thompson
Syd L. Brown* Bezalel C. Haimson Michael J. Passow Woodrow B. Thompson*
Wilfred B. Bryan Stephen A. Hall* Paul H. Pause Carlos Maria Urien
Gary Ray Byerly* Roger Allen Haskins George Peter Grant M. Valentine*
Victor E. Camp* George R. Helz David E. Pitzl Rob Van der Voo*
Daniel J. Casagrande* Christopher D. Henry* John P. Platt* Peter R. Vogt*
Joseph C. Cepeda Richard N. Hey* Edward L. Procyshyn Karl Vonder Linden*
Terry L. Chase Robert G. Hickman Walter C. Pusey III David Walker*
John F. Childs Rodney J. Holcombe* John G. Ramsay* Randall Earl Wallett
Allan Ross Chivas Roberst M Hunrt Jr. James P. Reger Carl M. Welch
Uel S. Clanton Wallace A. Jensky II Stephen P. Reidel Stephen G. Wells*
Charles W. Clendenin Jr. James B. Johnson Dick C. Rhindress James A. Whitney*
Mark D. Cocker James A. Joy Lee R. Rice Robert D. Winn
Mark Male Cole Suzanne M. Kay* James H. Robertson Michael F. Wolfert
Bruce A. Collins George Randy Keller* William P. Rogers Spencer H. Wood
Raymond M Martin Coveney Jr.* Frank Albert Kingery Denis W. Roy Thomas E. Yancey*
William Richard Cowan* Franklyn G. Koch William F. Ruddiman* Gale R. Yarrow
Thomas F. Cudzilo Randolph Allan Koski* David P. Russ William D. Zogg
Jad Alan Dallura J. Curtis Kramer Jason B. Saleeby*
James W. Deininger Jr. Byron Kulander* John K. Sales
George Dellagiarino David H. Lehman* J. Frederick Sarg*

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