Isaac Robert CruikshankIsaac Robert Cruikshank.

Isaac Robert Cruikshank, sometimes known as Robert Cruikshank (27 September 1789 to 13 March 1856), was a British caricaturist, illustrator and portrait miniaturist, the less well-known brother of George Cruikshank, both sons of Isaac Cruikshank. Just like them, he holds importance as a pioneer in the history of comics for creating several cartoons which make use of narrative sequence and speech balloons.