author
1872–1921
A Finnish writer, choir leader, and temperance advocate, he moved easily between music, journalism, and literature. His life and work reflect the lively civic culture of early 20th-century Finland.

by Kaarlo Terhi
Born in Salo on March 26, 1872, and later known by the surname Terhi instead of Hammar, he studied at the Jyväskylä teacher seminary and completed singing-teacher training at the Helsinki Music Institute. He worked as a teacher and journalist before becoming a freelance writer.
He was also active in Finland’s temperance movement, serving as a leader in temperance societies and conducting choirs. That mix of music, public speaking, and social engagement shaped much of his career and helps explain why he appears in both literary and musical reference sources.
He died in Helsinki on March 21, 1921. Surviving reference records show a substantial body of work connected with his writing, and he is still remembered in Finnish library and archival catalogs as a writer as well as a cultural organizer.