Among the Old Order Mennonite and Amish communities of Lancaster County, Pennsylvania, the coming of the telephone posed a serious challenge to the longstanding traditions of work, worship, silence, and visiting. In 1907, Mennonites crafted a compromise in order to avoid a church split and grudgingly allowed telephones for lay people while prohibiting telephone ownership among the clergy. By 1909, the Amish had banned the telephone completely from their homes. Since then, the vigorous and sometimes painful debates about the meaning of the telephone reveal intense concerns about the...