The River Brethren are a group of historically related Anabaptist Christian denominations originating in 1770, during the Radical Pietist movement among German colonists in Pennsylvania.
[1][2][3] In the 17th century, Mennonite refugees from Switzerland had settled their homes near the Susquehanna River in the northeastern United States.
[4] The initial spiritual leader of the brethren was Martin Boehm, evangelical preacher, who was excluded from the Mennonite Church.
Influenced by the Schwarzenau Brethren (named Dunkers), the River Brethren developed a conviction that trine (triple, in allusion to the Trinity) immersion, foot washing, adherence to plain dress, the wearing of a headcovering by women and teetotalism was the scriptural form of religion.
As of 2010, there were four bodies of River Brethren in about 300 congregations: Common to the Radical Piestic tradition, the River Brethren hold experience meetings, in which "members [are seen] testifying of God's work in their lives in bringing them to salvation and daily living.