""Blue Sky: The Life of Harriet Caswell-Broad"" is a biographical book written by Joseph Bourne Clark and published in 1911. The book tells the story of Harriet Caswell-Broad, a remarkable woman who lived during the late 19th and early 20th centuries. Harriet was born into a wealthy family and grew up in a privileged environment, but she was determined to make a difference in the world. The book covers Harriet's life from her childhood to her adulthood,...