Susan Coolidge, the pen name for Sarah Chauncey Woolsey (January 29, 1835 – April 9, 1905), was an American children's author best known for her classic coming-of-age series 'What Katy Did' chronicled in 'The Complete Katy Carr Series'. Born into a wealthy and influential family in Cleveland, Ohio, Woolsey worked as a nurse during the Civil War, an experience which deepened her compassionate insig...