Deutsche Kunst unserer Zeit, Kulturbund Überlingen, October 20-November 11, 1945, cat. no. 59. Neue Deutsche Kunst , Kunstwoche der Stadt Kontanz, June 1-30, 1946, cat. no. 116. Carl Hofer, Kunstverein Freiburg i. Breisgau, April 15-May 14, 1954, cat. no. 1. Karl Hofer. Memorial Exhibition, Kunstverein Konstanz, Wessenberghaus, October 2-November 20, 1955, cat. no. 13. Rückkehr der Moderne (Return of Modernism). The first post-war exhibition of ostracized German art, Städtische Galerie “Fauler Pelz,” Überlingen, September 10-November 5, 1995; Vonderau Museum, Fulda, November 11, 1995-January 14, 1996; Baden-Württemberg State Representation, Bonn, January 18-February 13, 1996; State Parliament of Baden-Württemberg, Stuttgart, January 23-February 16, 1996, cat. no. 41. Konturen neuer Kunst. Konstanzer Kunstwochen 1946, Städtische Wessenberg-Galerie, Konstanz, September 7-October 6, 1996, cat. no. 41. Karl Hofer am Bodensee, Städtische Wessenberg-Galerie, Konstanz, May 25-July 6, 2003. Moderne am Bodensee. Walter Kaesbach und sein Kreis, Städtisches Kunstmuseum, Singen, September 27-December 7, 2008; Städtische Wessenberg-Galerie, Konstanz, September 27, 2008-January 11, 2009.