Previous Executive Committees
Provisional International Crystallographic Committee, 1946 - 1948
President
- P.P. Ewald (UK)
General Secretary
- R.C. Evans (UK)
Members
- M.J. Buerger (USA)
- D. Harker (USA)
- J.A.A. Ketelaar (The Netherlands)
- C. Mauguin (France)
- A.V. Shubnikov (USSR)
- W.H. Taylor (UK)
Executive Committee elected at First General Assembly, 1948, Harvard, USA
President
- Sir Lawrence Bragg (UK)
Vice-Presidents
- A. Westgren (Sweden)
- R.W.G. Wyckoff (USA)
General Secretary
- R.C. Evans (UK)
Editor Acta Cryst.
- P.P. Ewald (UK)
Members
- M.J. Buerger (USA)
- A.L. Patterson (USA)
- J. Wyart (France)
Executive Committee elected at Second General Assembly, 1951, Stockholm, Sweden
President
- J.M. Bijvoet (The Netherlands)
Vice-Presidents
- G. Hägg (Sweden)
- J. Wyart (France)
General Secretary
- R.C. Evans (UK)
Editor Acta Cryst.
- P.P. Ewald (USA)
Members
- J.D. Bernal (UK)
- Sir K.S. Krishnan (India)
- E. Onorato (Italy)
- A.L. Patterson (USA)
Executive Committee elected at Third General Assembly, 1954, Paris, France
President
- R.W.G. Wyckoff (USA)
Vice-Presidents
- P.P. Ewald (USA)
- G. Hägg (Sweden)
General Secretary
- D.W. Smits (The Netherlands)
Members
- J.D. Bernal (UK)
- N.V. Belov (USSR)
- A. Guinier (France)
- A. Tovborg Jensen (Denmark)
- C.H. MacGillavry (The Netherlands)
- A.J.C. Wilson (UK)
Executive Committee elected at Fourth General Assembly, 1957, Montreal, Canada
President
- J. Wyart (France)
Vice-Presidents
- P.P. Ewald (USA)
- N.V. Belov (USSR)
General Secretary
- D.W. Smits (The Netherlands)
Retiring President
- R.W.G. Wyckoff (USA)
Members
- O.C.A. Bastiansen (Norway)
- A. Guinier (France)
- F.H. Laves (Switzerland)
- C.H. MacGillavry (The Netherlands)
- I. Nitta (Japan)
- A.J.C. Wilson (UK)
Executive Committee elected at Fifth General Assembly, 1960, Cambridge, UK
President
- P.P. Ewald (USA)
Vice-Presidents
- N.V. Belov (USSR)
- Dame Kathleen Lonsdale (UK)
General Secretary
- D.W. Smits (The Netherlands)
Retiring President
- J. Wyart (France)
Members
- W.H. Barnes (Canada)
- O.C.A. Bastiansen (Norway)
- F.H. Laves (Switzerland)
- I. Nitta (Japan)
- B.E. Warren (USA)
- G.S. Zhdanov (USSR)
Executive Committee elected at Sixth General Assembly, 1963, Rome, Italy
President
- J.D. Bernal (UK)
Vice-Presidents
- Dame Kathleen Lonsdale (UK)
- I. Nitta (Japan)
General Secretary
- D.W. Smits (The Netherlands)
Retiring President
- P.P. Ewald (USA)
Members
- W.H. Barnes (Canada)
- J.M. Cowley (Australia)
- H. Curien (France)
- H. Jagodzinski (Germany, Fed Rep)
- B.E. Warren (USA)
- G.S. Zhdanov (USSR)
Executive Committee elected at Seventh General Assembly, 1966, Moscow, USSR
President
- N.V. Belov (USSR)
Vice-Presidents
- I. Nitta (Japan)
- B.E. Warren (USA)
General Secretary
- G. Boom (The Netherlands)
Treasurer
- D.W.J. Cruickshank (UK)
Retiring President
- Dame Kathleen Lonsdale (UK)
Members
- J.M. Cowley (Australia)
- H. Curien (France)
- H. Jagodzinski (Germany, Fed Rep)
- A. Línek (Czechoslovakia)
- A.M. Liquori (Italy)
- W.H. Zachariasen (USA)
Executive Committee elected at Eighth General Assembly, 1969, Stony Brook, USA
President
- A. Guinier (France)
Vice-Presidents
- F. Laves (Switzerland)
- B.E. Warren (USA)
General Secretary and Treasurer
- D.W.J. Cruickshank (UK)
Immediate Past President
- N.V. Belov (USSR)
Members
- D. Hodgkin (UK)
- N. Kato (Japan)
- A. Línek (Czechoslovakia)
- A. McL. Mathieson (Australia)
- B.K. Vainshtein (USSR)
- W.H. Zachariasen (USA)
Executive Committee elected at Ninth General Assembly, 1972, Kyoto, Japan
President
- D. Hodgkin (UK)
Vice-President
- H. Jagodzinski (Germany, Fed Rep)
General Secretary and Treasurer
- S.E. Rasmussen (Denmark)
Immediate Past President
- A. Guinier (France)
Members
- N. Kato (Japan)
- K. Lukaszewicz (Poland)
- A. Magnéli (Sweden)
- A. McL. Mathieson (Australia)
- D.P. Shoemaker (USA)
- B.K. Vainshtein (USSR)
Executive Committee elected at Tenth General Assembly, 1975, Amsterdam, The Netherlands
President
- A. Magnéli (Sweden)
Vice-President
- B.K. Vainshtein (USSR)
General Secretary and Treasurer
- S.E. Rasmussen (Denmark)
Immediate Past President
- D. Hodgkin (UK)
Members
- F.R. Ahmed (Canada)
- E.F. Bertaut (France)
- K. Kuchitsu (Japan)
- K. Lukaszewicz (Poland)
- S. Ramaseshan (India)
- D.P. Shoemaker (USA)
Executive Committee elected at Eleventh General Assembly, 1978, Warsaw, Poland
President
- N. Kato (Japan)
Vice-President
- A.J.C. Wilson (UK)
General Secretary and Treasurer
- S.E. Rasmussen (Denmark)
Immediate Past President
- A. Magnéli (Sweden)
Members
- F.R. Ahmed (Canada)
- E.F. Bertaut (France)
- J. Karle (USA)
- H. Neels (German Dem Rep)
- S. Ramaseshan (India)
- V.I. Simonov (USSR)
Executive Committee elected at Twelfth General Assembly, 1981, Ottawa, Canada
President
- J. Karle (USA)
Vice-President
- S. Ramaseshan (India)
General Secretary and Treasurer
- K.V.J. Kurki-Suonio (Finland)
Immediate Past President
- N. Kato (Japan)
Members
- S. Amelinckx (Belgium)
- Th. Hahn (Germany, Fed Rep)
- M. Nardelli (Italy)
- H. Neels (German Dem Rep)
- V.I. Simonov (USSR)
- M.M. Woolfson (UK)
Executive Committee elected at Thirteenth General Assembly, 1984, Hamburg, Federal Republic of Germany
President
- Th. Hahn (Germany, Fed Rep)
Vice-President
- V.I. Simonov (USSR)
General Secretary and Treasurer
- K.V.J. Kurki-Suonio (Finland)
Immediate Past President
- J. Karle (USA)
Members
- A. Authier (France)
- R. Diamond (UK)
- A. Kálmán (Hungary)
- E.N. Maslen (Australia)
- M. Nardelli (Italy)
- Y.-q. Tang (China, People's Rep)
Executive Committee elected at Fourteenth General Assembly, 1987, Perth, Australia
President
- M. Nardelli (Italy)
Vice-President
- Y.-q. Tang (China, People's Rep)
General Secretary and Treasurer
- A.I. Hordvik (Norway)
Immediate Past President
- Th. Hahn (Germany, Fed Rep)
Members
- A. Authier (France)
- P. Coppens (USA)
- R. Diamond (UK)
- A. Kálmán (Hungary)
- E.N. Maslen (Australia)
- V.I. Simonov (USSR)
Executive Committee elected at Fifteenth General Assembly, 1990, Bordeaux, France
President
- A. Authier (France)
Vice-President
- A. Kálmán (Hungary)
General Secretary and Treasurer
- A.I. Hordvik (Norway)
Immediate Past President
- M. Nardelli (Italy)
Members
- R. Chidambaram (India)
- P.W. Codding (Canada)
- P. Coppens (USA)
- R.Diamond (UK)
- J. Harada (Japan)
- Yu.T. Struchkov (USSR/Russia)
Executive Committee elected at Sixteenth General Assembly, 1993, Beijing, People's Republic of China
President
- P. Coppens (USA)
Vice-President
- Yu. T. Struchkov (Russia)
Professor Yu. T. Struchkov died in 1995. The Executive Committee appointed Dr R. Chidambaram as Vice-President until the close of the next General Assembly .
General Secretary and Treasurer
- A.I. Hordvik (Norway)
Professor A.I. Hordvik died in 1995. The Executive Committee appointed Professor S. Larsen as General Secretary and Treasurer until the close of the next General Assembly .
Immediate Past President
- A. Authier (France)
Members
- E.N. Baker (New Zealand)
- R. Chidambaram (India)
- P.W. Codding (Canada)
- J. Harada (Japan)
- M. Hart (UK)
- H. Schenk (The Netherlands)
Executive Committee elected at Seventeenth General Assembly, 1996, Seattle, USA
President
- E.N. Baker (New Zealand)
Vice-President
- R. Chidambaram (India)
General Secretary and Treasurer
- S. Larsen (Denmark)
Immediate Past President
- P. Coppens (USA)
Members
- L.A. Aslanov (Russia)
- J.C.A. Boeyens (South Africa)
- H. Fuess (Germany)
- M. Hart (UK)
- H. Schenk (The Netherlands)
- M. Tanaka (Japan)
Executive Committee elected at Eighteenth General Assembly, 1999, Glasgow, UK
President
- H. Schenk (The Netherlands)
Vice-President
- M. Tanaka (Japan)
General Secretary and Treasurer
- S. Larsen (Denmark)
Immediate Past President
- E.N. Baker (New Zealand)
Members
- L.A. Aslanov (Russia)
- J.C.A. Boeyens (South Africa)
- M.A. Carrondo (Portugal)
- W.L. Duax (USA)
- H. Fuess (Germany)
- Z. Zhang (People's Republic of China)
Executive Committee elected at Nineteenth General Assembly, 2002, Geneva, Switzerland
President
- W.L. Duax (USA)
Vice-President
- L.A. Aslanov (Russia)
General Secretary and Treasurer
- S. Larsen (Denmark)
Immediate Past President
- H. Schenk (The Netherlands)
Members
- M.A. Carrondo (Portugal)
- G. Heger (Germany)
- Y. Ohashi (Japan)
- I. Torriani (Brazil)
- D. Viterbo (Italy)
- Z. Zhang (People's Republic of China)
Executive Committee elected at Twentieth General Assembly, 2005, Florence, Italy
President
- Y. Ohashi (Japan)
Vice-President
- I. Torriani (Brazil)
General Secretary and Treasurer
- S. Lidin (Sweden)
Immediate Past President
- W.L. Duax (USA)
Members
- P.M. Colman (Australia)
- G.R. Desiraju (India)
- C.J. Gilmore (UK)
- G. Heger (Germany)
- C. Lecomte (France)
- D. Viterbo (Italy)
Executive Committee elected at Twenty-First General Assembly, 2008, Osaka, Japan
President
- S. Larsen (France)
Vice-President
- P.M. Colman (Australia)
General Secretary and Treasurer
- S. Lidin (Sweden)
Immediate Past President
- Y. Ohashi (Japan)
Members
- E. Boldyreva (Russia)
- L.T.J. Delbaere (Canada)
- G.R. Desiraju (India)
- C.J. Gilmore (UK)
- C. Lecomte (France)
- J.M. Perez-Mato (Spain)
L.T.J. Delbaere was elected to serve for the period 2008-2011. However, he died in 2009. The Executive Committee co-opted M.L. Hackert to fill the vacancy thus created until the close of the next General Assembly.
Executive Committee elected at Twenty-Second General Assembly, 2011, Madrid, Spain
President
- G.R. Desiraju (India)
Vice-President
- C. Lecomte (France)
General Secretary and Treasurer
- L. Van Meervelt (Belgium)
Immediate Past President
- S. Larsen (Denmark)
Members
- E. Boldyreva (Russia)
- H.A. Dabkowska (Canada)
- W. Depmeier (Germany)
- J.M. Guss (Australia)
- M.L. Hackert (USA)
- J.M. Perez-Mato (Spain)
Executive Committee elected at Twenty-Third General Assembly, 2014, Montreal, Canada
President
- M.L. Hackert (USA)
Vice-President
- A.M. Glazer (UK)
General Secretary and Treasurer
- L. Van Meervelt (Belgium)
Immediate Past President
- G.R. Desirau (India)
Members
- H.A. Dabkowska (Canada)
- W. Depmeier (Germany)
- S. Garcia-Granda (Spain
- J.M. Guss (Australia)
- R. Kuzel (Czech Republic)
- M. Takata (Japan)
Executive Committee elected at Twenty-Fourth General Assembly, 2017, Hyderabad, India
President
- S. Lidin (Sweden)
Vice-President
- H.A. Dabkowska (Canada)
General Secretary and Treasurer
- L. Van Meervelt (Belgium)
Immediate Past President
- M.L. Hackert (USA)
Members
- W. Depmeier (Germany)
- G.C. Diaz de Delgado (Venezuela)
- S. Garcia-Granda (Spain)
- R. Kuzel (Czech Republic)
- J.L. Martin (Australia)
- M. Takata (Japan)
Executive Committee elected at Twenty-Fifth General Assembly, 2021, Prague, Czech Republic
President
- H.A. Dabkowska (Canada)
Vice-President
- S. Garcia-Granda (Spain)
General Secretary and Treasurer
- B. Brummerstedt Iversen (Denmark)
Immediate Past President
- S. Lidin (Sweden)
Members
- A. Altomare (Italy)
- G.C. Diaz de Delgado (Venezuela)
- J.L. Martin (Australia)
- T. Proffen (USA)
- M. Takata (Japan)
- M. Weiss (Germany)
Executive Committee elected at Twenty-Sixth General Assembly, 2023, Melbourne, Australia
President
- S. Garcia-Granda (Spain)
Vice-President
- G.C. Diaz de Delgado (Venezuela)
General Secretary and Treasurer
- T. Forsyth (Sweden)
Immediate Past President
- H.A. Dabkowska (Canada)
Members
- A. Altomare (Italy)
- S. Bourne (South Africa)
- M.C. Nonato (Brazil)
- A. Nakagawa (Japan)
- T. Proffen (USA)
- M. Weiss (Germany)