- Peace, Faith, Nation: Mennonites and Amish in Nineteenth-Century America (Mennonite Experience in America)
- Mennonite and Nazi?: Attitudes Among Mennonite Colonists in Latin America, 1933-1945
- Gospel Versus Gospel: Mission and the Mennonite Church, 1863-1944 (Studies in Anabaptist and Mennonite history)
- Edwin E. Witte: Cautious Reformer
- Vision, Doctrine, War: Mennonite Identity and Organization in America, 1890-1930 (Mennonite Experience in America)