Calesthenics i.e., calisthenics Every day, every school in Lawton has 15 minutes of this out-door work.

Calesthenics i.e., calisthenics Every day, every school in Lawton has 15 minutes of this out-door work. Location: Lawton, Oklahoma. Date Created/Published: 1917 April. LOC original medium: 1 photographic print. Picture of child labour by Lewis Wickes Hine.