Title: A generation of vigilance
Subjects: Mennonites, Missions, Clergé, Mennonite Brethren Church, Biographies, Clergy, Biography
Places: Yarrow (B.C.), British Columbia, Colombie-Britannique, Yarrow, Yarrow (C.-B.)
People: Johannes Harder (1897-1964), Tina Harder (1890-1991)