STAMFORD — “Beetle Bailey” creator Mort Walker, who chronicled the mishaps of the world’s laziest U.S. Army private since 1950 while maintaining an unrivaled run of work in the comics industry, died at his Stamford, Connecticut, home Saturday at 94. Walker’s work ethic was defined by “Beetle Bailey,” the longest-running comic strip drawn by its original creator in the history of comics, but he published eight other strips at various points of his career.