Child of Aarne Antero Vilponen and Aili Elisa Koski Spouse of Private Parent of Private; Private; Private; Private; Private and 3 others; Private; Onni Jan Åke Michael Ljungberg and Private « less Sibling of Kalevi Aatos Koski; Veikko Antti Koski; Private; Sanna Maija Koski and Private User