1969 0 Objects, 0 Painters, 0 Sculptors, 4 Artists..., Seth Siegelaub at McLendon Building, New York, US One Month Exhibition, Seth Siegelaub Contemporary Art, New York, US Op Losse Schroeven / Situaties en Cryptostructuren (Square Pegs
in Round
Holes), Stedelijk Museum, Amsterdam, NL (Verborgene Strukuren), Folkwang Museum, Essen, DE When Attitudes Become Form, Live
in Your Head, Kunsthalle Bern, Bern, CH; Museum Haus Lange, Krefeld, DE 18» 6» x 6» 9» x 11» 2 1/2» x 47» x 11 3/16» x 29» 8 1/2» x 31» 9 3/16», San Francisco Art Institute, San Francisco, California, US; traveled to Simon Fraser
Center for Communication and the Arts, Simon Fraser University, Vancouver, CA No. 7, Art Workers Federation Benefit, organised by Lucy Lippard, Paula Cooper Gallery, New York, US May - June 1969,
Center for Communication and the Arts, Simon Fraser University, Vancouver, CA Language III, Dwan Gallery, New York, US July, August, September 1969, Seth Siegelaub Contemporary Art, New York, US Conception, Perception, Eugenia Butler Gallery, Los Angeles, California, US 0 - 9, Issue # 6, New York, US Wall Show - Part 1, Ace Gallery, Los Angeles, California, US When Attitudes Become Form, Institute for Contemporary Art, London, UK Place and Process, Edmonton Art Gallery, Edmonton, CA; Kineticism Press, New York, US 557,087, Seattle Museum of Art, Seattle, Washington D.C., US Prospect 69, Stadtische Kunsthalle Düsseldorf, Düsseldorf, DE Project Class, Nova Scotia College of Art and Design, Halifax, CA Konzeption / Conception, Stadtisches Museum Leverkusen, Schloss Morsbroich, DE Groups, The Visual Arts Gallery, School of Visual Arts, New York, US Pläne und Projekte als Kunst (Plans and Projects as Art), Kunsthalle Bern, Bern, CH Art
Without Space, WBAI - FM, New York, US Art
in Process IV, Finch College Museum of Art, New York, US Mail Exhibition, Nova Scotia College of Art and Design, Halifax, CA