• Jean Hennebert, Paris – 1963-67

  • Renato Giovannozzi, Torino – 1967-71

  • Gideon Meeuse†,Delft – 1971-75

  • Jean Verwilst, Bruxelles – 1975-79

  • Ugo Rossetti, Torino – 1979-83

  • Max Clayton, London – 1983-87

  • Ernst Ulrich, Bochum – 1987-91
  • Lourus Wiek, Delft – 1991-95
  • Richard Chaplin, Reading – 1995-99
  • Donald Sayenga†, Bethlehem – 1999-01

  • Gábor Oplatka, Zürich – 2001-03

  • Jean-Paul Gourmelon, Nantes – 2003-07

  • Roland Verreet, Aachen – 2007-09

  • Knut Buschmann, Ontario – 2009-11

  • Isabel Ridge, Wallingford – 2011-15

  • Jean Marc Teissier, Grenoble – 2015-19

  • John Dodd†, Newcastle-Upon-Tyne – 2020-22

  • William Putnam, Saco – 2022-24