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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
http://rock.geosociety.org/membership/50YearFellows.asp. Asterisks (*) indicate GSA Fellows.

Carlos E. Albrizzio Richard W. Ely Jan Krason Charles K. Scharnberger*
David W. Andersen* J. Mark Erickson* Madhurendu B. Kumar Judith A. Schiebout
Timothy A. Anderson Robert H. Fakundiny* Dale S. Kunitomi David Schleicher*
John M. Armentrout* P. Geoffrey Feiss* Les J. LaFountain Frank W. Schwartz*
David D. Ashenden Leon R. Follmer* Garland C. Lamb John G. Sclater*
James Wiley Babcock Eric R. Force* Steven J. Lambert* William E. Scott*
Henry A. Bart O.L. Franke Abraham Lerman* Barun K. Sen Gupta*
Robert L. Bauer* Göran Fredrikson Gerald R. Licari Gerald I. Shiller
C. Richard Berquist Jr. Virgil A. Frizzell Jr.* William J. Ludwig* John F. Slack*
Thomas Bobal George D. Gardner David N. Lumsden* Roger S.U. Smith
Peter E. Borella Roger Lee Gilbertson David L. Mari Henry R. Spall*
Arthur H. Brownlow* Arthur R. Green* Richard F. Marvin David B. Stearns Jr.
James N. Brune* John H. Grimes Allen F. Mattis* Howard L. Stensrud
George T. Cardwell Donald W. Groff George R. McCormick III* Robert J. Stull
Sam Carmalt George R. Hallberg* Robert T. Misen Lee J. Suttner*
David W. Carpenter Susan D. Halsey* Peter J. Modreski Anthony J. Tankard*
L. David Carter* Russell S. Harmon* John H. Mossler John Z. Tomich
Richard Allen Castle Donald A. Hartman Paul A. Mueller* C. Brian Trask
Timothy Michael Chowns Charles T. Helfrich Kent C. Nielsen* Brian E. Tucholke*
Stan E. Church* Richard Hereford* Dennis L. Nielson* James F. Tull*
John W. Cochran Michel Hermelin* James A. Nowacki* David T. Vaniman*
Barry P. Cohn Reinhard Hesse* Ervin G. Otvos* William W. Vernon
George Herbert Davis* A. M. Hopgood* Howard Parish G.D. Webster*
Richard A. Davis Jr.* Michael J. Hozik Eugene F. Pearson* Robert L. Wesson*
Howard W. Day* Peter J. Hudleston* William A. Pirkle David S. Westerman
Mark J. De Lisle O. Frank Huffman David P. Price Peter W. Whaley
Stuart L. Dean* Graham Hunt John M. Proffett* Russell L. Wheeler
Jean-Michel Dercourt* William C. Johnson* Loren A. Raymond* Karen R. Whiteley
Thomas A. Dumper Daniel E. Karig* William D. Rebuck Jeff Williams*
Michael A. Dungan E.A. Keller* Scott C. Reeve Joseph L. Wooden*
Steven I. Dutch Wayne R. Kemp Dallas D. Rhodes*
David E. Eby Dennis Kent* Martin E. Ross
Lloyd N. Edwards Kim Donald Klitgord* Joseph F. Ruzicka

20 GSA Today | July 2021