Bachelor in Physical Education, Helsinki University, 1961. Master of Arts in Education, Stanford (California) University, 1963.
She participated at the 1960 Summer Olympics. Trained as a gym teacher, she took her masters in pedagogy at Stanford University (1963). Interested in American art and folk music, she began to record, and her first release, (1966) was a collection of American folk songs, translated to Finnish.
Her family now live in Espoo.
She became well-known internationally, and is a member of Visens venner in Norway, of Visans Vänner in Helsinki and Yrkestrubadurernas Forening in Sweden, part of the Svenska Visakademien (1999, its only Finn) and the joint Nordic cultural organisation NordVisa.
Married Henry William Koski, August 30, 1967. Children: Marika Elisabeth Koski, Karina Susanna Koski.