A. Alberts (Dutch; excluded Spring 1960) An architect.
Armando (Dutch; excluded Spring 1960)
François de Beaulieu; (French; resigned July 1970)
Michele Bernstein (French; resigned 1967) Co-founder of the SI. Wife of Guy Debord, then Ralph Rumney.
Robert Chasse (American; excluded January 1970)
Patrick Cheval (French; resigned January 1970) One of the Nanterre Enrages.
Alain Chevalier (French; excluded October 1969)
Ivan Chtcheglov (French; member from afar) A key member of the Lettrist International.
Timothy Clark (English; excluded December 1967) An expert in and later professor of Art History.
Mohamed Dahou (Algerian; resigned 1959)
Guy Debord (French; dissolved SI in 1972) A co-founder of the SI and its best-known member.
Erwin Eisch (German; excluded February 1962) Worked closely with Gianfranco Sanguinetti in the 1970s.
Ansgar Elde (Scandinavian; excluded March 1962)
Bruce Elwell (American; excluded January 1970)
Bengt Ericson (Scandanavian; resigned November 1969).
Lothar Fischer (German; February 1962) A member of the Spur group.
Andre Frankin (Belgian; resigned March 1961) Also was in the Lettrist International.
Edith Frey (French; resigned January 1967)
Theo Frey (French; excluded January 1967) One of the Strasbourg students involved in the scandalous publication of On the Poverty of Student Life.
Jean Garnault (French; excluded January 1967) Another Strasbourg student involved in the scandalous publication of On the Poverty of Student Life. When he was excluded, the SI referred to him and his group as the Garnautins.
Christopher Gray (English; excluded December 1967) Edited and published first English-language anthology of Situationist texts (1974).
Anton Hartstein (French/Rumanian; excluded July 1966)
Heinz Hofl (German; resigned 1960)
Herbert Holl (French; excluded January 1967) Another Strasbourg student involved in the scandalous publication of On the Poverty of Student Life.
Jon Horelick (American; resigned December 1970)
Jacqueline de Jong (Dutch; excluded March 1962) Founded The Situationist Times after her exclusion (1962).
Asger Jorn (French/Danish; resigned April 1961) A co-founder of the SI. In 1955, founded of the Movement for an International Imaginist Bauhaus. After 1961, sometimes published in situationist publications as George Keller.
Abdelhafid Khatib (Algerian; resigned 1960)
Mustapha Khayati (French/Tunesian; resigned September 1969) Author of On the Poverty of Student Life (1966). Briefly a member of the Palestine Liberation Organization (1969).
Walter Korun (Belgian; excluded Autumn 1958) Pseudonym used by Piet De Groof, a member of the Belgian Air Force.
Attila Kotanyi (Belgian/Hungarian; excluded October 1963) Fled his native Hungary in 1956.
Dieter Kunzelmann (German; excluded February 1962) A member of the Spur group.
Steffan Larsson (Scandinavian/Swedish; excluded March 1962)
Peter Laugesen (Scandinavian/Danish; excluded November 1963)
Uwe Lausen (German; excluded March 1965)
Katja Lindell (Scandinavian/Swedish; excluded March 1962)
Ndjangani Lungela (French/Congolesian; resigned 1967) Guy Debord alludes to his membership in a letter to Raoul Vaneigem dated 25 November 1965.
Jeppesen Victor Martin (Scandinavian/Danish; dissolved SI in 1972)
Giors Melanotte (Italian; resigned Summer 1960) Son of Guiseppe Pinot-Gallizio.
Jorgen Nash (Scandinavian/Danish; excluded March 1962) Asger Jorn's younger brother.
Renee Nele (German; excluded February 1962)
Donald Nicholson-Smith (English; excluded December 1967) An excellent French/English translator.
Constant Nieuwenhuis (Dutch; resigned Summer 1960) A member of the COBRA group of painters and writers.
Walter Olmo (Italian; excluded January 1958) A co-founder of the SI; a musician.
R. Dahlmann Olsen (Danish). Guy Debord alludes to his membership in a letter to Patrick Straram dated 26 July 1960.
Har Oudejans (Dutch; excluded Spring 1960) An architect.
Jacques Ovadia (Israeli; resigned 1961) A journalist.
Claudio Pavan (Italian; excluded March 1970)
Giuseppe Pinot-Gallizio (Italian; excluded July 1960) A painter and pharmacist; a co-founder of the SI
Hans Platschek (German; excluded February 1959) Co-wrote the first German SI manifesto.
Heimrad Prem (German; excluded February 1962) A member of the Spur group.
Charles Radcliff (English; resigned November 1967)
Rudi Renson (Belgian; resigned 1966)
Rene Riesel (French; excluded September 1971) A member of the Sisyphe group in Nanterre (1966). Re-surfaced in late 1990s as strong critic of agribusiness and genetically modified organisms.
Eduardo Rothe (Italian/Venezuelan; excluded April 1970)
Ralph Rumney (Italian/English; excluded March 1958) A co-founder of the SI. Once married to Michele Bernstein.
Paolo Salvadori (Italian; excluded September 1970)
Gianfranco Sanguinetti (Italian; dissolved the SI in 1972) Most productive and influential period came after the SI's dissolution.
Christian Sebastini (French; forced to resign December 1970) A member of the Sisyphe group in Nanterre (1966). One of the founders of The Encyclopedie de Nuisances (1984-1992).
Piero Simondo (Italian; excluded January 1958) A co-founder of the SI. Married to Elena Verrone.
Gretel Stadler (German; excluded February 1962)
Hardy Strid (Scandinavian/Swedish; excluded March 1962)
Jan Strijbosch (Belgian/Dutch; excluded July 1966)
Helmut Sturm (German; excluded February 1962) A member of the Spur group.
Alexander Trocchi (Scottish; forcibly resigned October 1964) Afterwards, he linked up with William Burroughs (1964) and started "Project Sigma" (1965).
Raoul Vaneigem (Belgian; resigned November 1970)
Tony Verlaan (American/Dutch; resigned December 1970)
Elena Verrone (Italian; excluded January 1958) A co-founder of the SI. Married to Piero Simondo.
Rene Vienet (French; resigned February 1971). Like Debord, a film-maker and translator.
Glauco Wuerich (Italian; excluded Summer 1960)
Maurice Wyckaert (Belgian; excluded April 1961)
Hans-Peter Zimmer (German; excluded February 1962) A member of the Spur group.
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