Career
He joined the Labour Party in 1895. In his heyday, Kalvaa was known as one of the most prolific and influential agitators of the trade union movement.
He joined the Labour Party in 1895. In his heyday, Kalvaa was known as one of the most prolific and influential agitators of the trade union movement.
He served as a board member of the Norwegian Union of General Workers from 1902 to 1913, and was then hired as the Labour Party"s secretary in Trondhjem.