Kate Douglas Wiggin spent her life dedicated to children's welfare. She headed the first free kindergarten in California, in the slums of San Francisco, and established a kindergarten teachers' training school with her sister. Her writing career, which began as a means of raising money for her school, spanned four decades. After the death of her first husband in 1889, she relocated back to Maine, where her summer home in Hollis is now the home to the town's Salmon Falls Library.