The records of Pierson United Church held at the conference archives include: Sacramental Registers pertaining to Baptisms (1907-1944, 1911-1951, 1938-1957), Marriages (1907-1943, 1943-1955, 1940-1980), and Burials (1907-1942, 1944-1956); records of the Official Board (1941-1952); records of annual United Church Women's meetings (1959-1974); records of the building fund (1944-1947); financial records (1924-1944, 1941-1950, 1951-1955); records of the Ladies' Aid (1932-1937, 1938-1940; 1945-1952, 1952-1956, 1956-1958); financial reports of the Ladies' Aid (1933-1958, 1952-1954, 1954-1960) ; financial records of the Junior Ladies' Aid (1951-1960); minutes of the Junior Ladies' Aid (1958-1961); and minutes from the Junior United Church Women (1977-1979, 1979-1980).

The records of Pierson Presbyterian Church held at the conference archives include: a Sacramental Register pertaining to Baptisms (1909-1919, 1912), Marriages (1909-1918, 1912), Burials (1914-1919, 1912); records of the Board of Managers (1891-1899); and records of session (1911-1921).

The records of Pierson Methodist Church held at the conference archives include: records of the Official Board (1904-1923); financial records (1907-1923); and records of the Ladies Aid (1914-1924).

The records of Olive United Church held at the conference archives include records of the annual meetings (1933-1958) and records of the Board of Stewards (1943-1958).

The records of Olive Presbyterian Church held at the conference archives include records of the annual meetings (1898 - 1923).

The records of Ogilvie United Church held at the conference archives include: records of the Official Board (1898-1959, 1953-1954); and a cash book (1898-1959).

The records of Oakville Union Church held at the conference archives include: a Sacramental register pertaining to Baptisms (1900-1925), Marriages (1903-1924), and Burials (1899-1923); records of the trustees (1900-1928) and minutes of the Ladies Aid (1917-1922, 1922-1923, 1923-1926).

The records of Oakville Methodist Church held at the conference archives include: a Circuit Register (1899-1917); minutes of the Trustee Board (1900-1914); minute book of the Oakville Circuit (1904-1917); and miscellaneous reports of early church history (1900-1926).

The records of Oak Lake Union Church held at the conference archives include: records of the Session (1920 - 1924); records of the Woman's Missionary Society (1918 - 1923); and records of the Congregation (1897 - 1924).

The records of Oak Lake Methodist Church held at the conference archives include: records of the Quarterly Official Board (1883 - 1901); financial records (1890 - 1913); Sacramental Register pertaining to Baptisms (1885 - 1902), Marriages (1886 - 1902), and Burials (1887 - 1903, 1915 - 1916); circuit register (1889 - 1919); records of the Official Board (1901 - 1920); and records of the Missionary Society (1907 - 1920).