This collection consists of the dissertation of K. James Stein at Union Theological Seminary, submitted in 1965. There is a single volume of roughly 320 typed pages. Its focus is on the various Ecumenical currents within the Church of the United Brethren in Christ and its forerunners, along with its occasional attempts at union with denominations such as the Methodist Episcopal Church. Stein examines the attempts and explains their origins, progress and ultimate reasons (in attempts at union) for failure. The time-span largely focuses on the 19th century, with some early focus on the late-18th century. Stein depicts the ethos, and rural emphasis of the Brethren sects along with their involvement in foreign missionary work. He also makes a significant focus of the pietistic elements in Church of the United Brethren doctrine, attitude, and worship.

Administration holds a variety of committee meeting minutes. Campus ministry documents the National Division's campus ministry program. Conference contacts holds regular correspondence between the Division and their counterparts at the conference or jurisdictional level; the material is organized by conference, jurisdiction or by state. Crusade scholars holds records of applications and correspondence with successful scholars. Department of Architecture documents several building programs and building plans used by the Division. The Division's participation in the denomination-wide ethnic minority local church emphasis is documented in this series. Issues remaining after the merger of the Evangelical United Brethren Church and the Methodists are held in the EUB series. Various special programs of the Division which focus on several urban issues are documented in the Institutional Ministries, Metropolitan Urban Service Training, Office of Urban Ministries and Parish Ministries series. Legal files deal with financial issues, bequests and gifts to the Division. Reports holds various statements and reports issued by the Division, while Research and Surveys most hold research conducted for local churches or annual conferences and relate to church growth issues. Town and country ministries are documented in this series. The Division's work with schools and children's homes are documented in the Youth Serving Ministries. The Subject files contain regular correspondence and reports about the various programs of the Division.