Sarah Chauncey Woolsey (January 29, 1835 - April 9, 1905) was an American children's author who wrote under the pen name Susan Coolidge.Woolsey was born on January 29, 1835 into the wealthy, influential New England Dwight family, in Cleveland, Ohio. Her father was John Mumford Woolsey (1796-1870) and her mother Jane Andrews, and author and poet Gamel Woolsey was her niece. She spent much of her childhood in New Haven Connecticut after her family moved there in 1852.