Fonds consists of records, including marriages, 1896-1922, from Brooklin Methodist Circuit, 1872-1925; records of Columbus and Brooklin Presbyterian Pastoral Charge, 1896-1926; records of Brooklin Presbyterian Church, 1877-1925; records of Brooklin and Kedron Pastoral Charge, 1925-1926; records of Columbus and Brooklin Pastoral Charge, 1925; records, including baptisms, 1915-1946, marriages, 1914-1947. and burials, 1914-1949, of Brooklin United Church, 1908-1998.

Fonds consists of records, including baptisms, 1937-2013, and marriages, 1928-2005, of Cedardale United Church, Oshawa, 1927-2020.

Fonds consists of records, including baptisms and burials, 1917-1921, of South Oshawa Methodist Mission, 1903-1925; records, including marriages, 1896-1925, of Oshawa Christian Church, 1880-1925; records, including baptisms 1941-1959, marriages, 1925-1959, and burials 1941-1959, of Centre Street United Church, Oshawa, 1925-1967; records of marriage 1951-1972, of Westmount United Church, 1945-1969; records, including records of baptisms 1959-1967, marriage 1959-1967,1973-1995, and burials 1955-1985, of Centennial United Church, Oshawa, 1959-1996; records, including baptisms,1921-1961,1966-1995, marriages, 1914-1927, 1933-1995, and burials, 1921-1927,1950, 1959-1996, of Albert Street United Church, 1914-1996; and records of Centennial Albert United Church, 1968-2021.

Fonds consists of records of Centre Street United Church in Oshawa (formerly Oshawa Christian Church), including board and committee minutes, 1831-1967, membership records, 1831-1956, women's groups minutes, 1925-1967, CGIT minutes, 1959-1963, and historical information (on microfilm).

Fonds consists of records, including marriages, 1897-1916, of South Darlington Methodist Circuit (includes Ebenezer Church in Darlington Township, Maple Grove), 1889-1916; records of Courtice Methodist Circuit (includes Ebenezer Church in Darlington Township, Maple Grove), 1916-1925; building committee minutes of Ebenezer Methodist Church in Darlington Township, 1892-1893; records of St. Andrew's Presbyterian Church (Oshawa, Ont.), 1835-1926, includes records of baptism 1837-1847 and marriages 1835-1921; records, including baptisms, 1905-1936, marriages, 1905-1944, 1957, burials, 1906-1944, of Courtice Pastoral Charge (includes South Darlington Methodist Circuit, Courtice Methodist Circuit, Courtice, Ebenezer Church in Darlington Township, Maple Grove), 1905-1951; records of Ebenezer United Church in Darlington Township (includes Ebenezer Bible Christian Church, Ebenezer Methodist Church), 1866-1963; records, including baptisms, 1966-1996, marriages, 1966-1994, and burials, 1966-1996, of Courtice United Church, 1935-1996; and records, including baptisms, 1876 -1996, marriages, 1922-1996, and burials, 1938-1996, of St. Andrew's United Church, 1835-1997.