Signe Hammarsten-Jansson
Swedish graphic artist
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Signe "Ham" Hammarsten-Jansson was a Swedish-Finnish graphic artist who designed, among other things, around 220 Finnish postage stamps during the course of three decades. She was the mother of Tove Jansson, creator of the Moomin characters. Wikipedia
Born: June 1, 1882, Sweden
Died: July 6, 1970 (age 88 years), Porvoo, Finland
Spouse: Viktor Jansson (m. 1913–1958)
Children: Per Olov Jansson, Lars Jansson, Tove Janssonin elämäkerta, and more
Grandchild: Sophia Jansson