found: Terezín [SR] p2007:container (Karel Švenk) insert (1917-1945; "the Charlie Chaplin of Theresienstadt"; ran a company there called the Theatre of Useless Talents)
found: Leonarda Productions WWW site, Feb. 25, 2008:Composers of the Holocaust; Program notes (Karel Svenk, born Schwenk (1907-1945); Czech actor, director, writer, and composer; initiated the cabaret or variety show at Terezín, where he was imprisoned)
found: Karas, J. Music in Terezín 1941-1945, c1985:p. 11 (Karel Švenk (Schwenk); b. Mar. 17, 1907; pioneer of the avantgarde theater of his native Prague) p. 145 (d. Apr. 1945 after being transported from Terezín to Auschwitz)
found: Krása, Hans. Brundibár [SR], c2010:insert, p. [4] (Karel Schwenk (1907-1945))