Secretaries-General and Treasurers
- 1922–28 Sir Charles Close, UK
- 1928–31 Filippo de Filippi, Italy
- 1931–38 Emmanuel de Martonne, France
- 1938–49 Paul Michotte + Marguerite-Alice Lefèvre, Belgium
- 1949–56 George H. T. Kimble, Canada
- 1956–68 Hans Boesch, Switzerland
- 1968–76 Chauncy D. Harris, United States
- 1976–84 Walther Manshard, Germany
- 1984–92 Leszek A. Kosiński, Canada
- 1992–2000 Eckart Ehlers, Germany
- 2000–2008 Ronald Francis Abler, United States
- 2008–2010 Yu Woo-ik, South Korea
- 2010–present Michael Meadows, South Africa
Read more about this topic: International Geographical Union