The German Reformed Church became known as the Reformed Church in the United States in 1869. In 1934 it merged with the Evangelical Synod of North America (formed in 1877 by the merger of the Evangelical Synod of the Northwest, the German Evangelical Society of Ohio, the United Evangelical Society of the East, and other similar organizations) to form the Evangelical and Reformed Church. In 1957 the latter merged with the General Council of the Congregational Christian Churches of the United States to form the United Church of Christ.

Rumpf, O. Christian faith and life, 1948.

Loveitt, R.A. A history of the First Congregational Church, U.C.C. of South Portland, Maine (the Old North Church), c1984: t.p. (First Congregational Church, U.C.C. of South Portland, Maine)

NUCMC data from Bowling Green State University, Center for Archival Coll. for Peace United Church of Christ (Galion, Ohio). Records, 1841-1969 (United Church of Christ; Evangelical and Reformed Church)

United Church of Christ yearbook, 1990, p. 28 (United Church of Christ formed in 1957 from the General Council of the Congregational Christian Churches and the Evangelical and Reformed Church; until 1984, a General Council of the Congregational Christian Churches existed within the U.C.C. for certain legal functions)