 The series was retired in 1918 at the height of the characters' popularity – partly because of the growing tension against titles with German associations after World War I.The comic strip was briefly renamed to "The Shenanigan Kids" around this time, and in 1920 another five cartoons were produced under this title.All "Katzenjammer Kids"/"Shenanigan Kids" cartoons from International Film Services were directed (and most likely also animated) by Gregory La Cava.