Nanny Matilda Hammarström (March 23, 1870 – December 3, 1953) was a
Finland-Swedish
Finland Swedish or Fenno-Swedish (; ) is a Variety (linguistics), variety of the Swedish language and a closely related group of Swedish dialects spoken in Finland by the Swedish-speaking population of Finland, Swedish-speaking population, common ...
teacher and author.
Hammarström was born in
Vaasa
Vaasa (; , ), formerly (1855-1917) known as Nikolaistad (; ), She taught mathematics, natural history, and geography at schools in
Kokkola
Kokkola (; , ) is a town in Finland and the regional capital of Central Ostrobothnia. It is located on the west coast of the country, on the Gulf of Bothnia. The population of Kokkola is approximately , while the Kokkola sub-region, sub-region h ...
(1890–1891),
Mariehamn
Mariehamn ( , ; ; ) is the capital of Åland, an autonomous territory under Finnish sovereignty. Mariehamn is the seat of the Government and Parliament of Åland, and 40% of the population of Åland live in the city. It is mostly surrounded b ...
(1895–1900), and
Loviisa
Loviisa (; ; formerly Degerby) is a town in Finland, located on the southern coast of the country. Loviisa is situated in the eastern part of the Uusimaa region. The population of Loviisa is approximately , while the Loviisa sub-region, sub-regi ...
(1900–1943). She was active in a variety of roles in the community and society in Loviisa; she was a member of the town council from 1919 to 1923, and she became the chair of the town library board in 1930.
Hammarström was known in particular as an author of children's books with nature themes. Her eleven books of stories were published in large print runs. She gained an international foothold with her debut work (The Adventures of Two Ants, 1906); the book was translated into Finnish, Norwegian, German, English, and Russian. This was followed, among other works, by (The Spring Wind's Journey; 1929), a story in which the south wind tells about everything it meets on its journey north. Her books are about the life and interaction of nature and animals, and Hammarström illustrated them herself. In 1979, and (The Hirundo Swallow Couple, 1915) were republished in new editions. The books (Children and Adults I–II, published in 1918 and 1920), are about the author's own family.
Hammarström died in Loviisa, where she is also buried.