Kate Douglas Wiggin (September 28, 1856 - August 24, 1923) was an American educator and author of children's stories, most notably the classic children's novel Rebecca of Sunnybrook Farm. She started the first free kindergarten in San Francisco in 1878 (the Silver Street Free Kindergarten). With her sister during the 1880s, she also established a training school for kindergarten teachers. Kate Wiggin devoted her adult life to the welfare of children in an era when children were commonly thought of as cheap labour Kate Douglas Smith Wiggin was born in Philadelphia, the daughter of lawyer Robert N. Smith, and of Welsh descent.[1][2] Kate herself experienced a happy childhood, even though it was coloured by the American Civil War and her father's death. Kate and her sister Nora were still quite young when their widowed mother moved her little family from Philadelphia to Portland, Maine, then, three years later, upon her remarriage, to the little village of Hollis. There Kate matured in rural surroundings, with her sister and her new baby brother, Philip.