Fonds consists of register of church union vote taken to join the United Church, 1925.

Fonds consists of marriage register of Appin United Church (includes Appin Methodist Church), 1897-1930.

Fonds consists of records of Arkona Methodist Circuit (includes Arkona Wesleyan Methodist Circuit, Arkona Methodist Episcopal Circuit, Arkona, Sylvan, Ravenswood, Bethel Church in Warwick Township, Keyser), 1861-1926; land deed, 1904, and photograph, of Salem Methodist Episcopal Church, Keyser; Board and Committee minutes of Arkona Methodist Church, 1898-1922; Official Board minutes of Arkona United Church (includes Arkona Methodist Church), 1920-1951.

Fonds consists of records, including marriages, 1899-1925, of St. John's Methodist Circuit (includes London South Methodist Circuit, Arva, Hyde Park, Melrose), 1899-1925; Epworth League minutes of Hyde Park Methodist Church, 1894-1899; records of Arva Methodist Church, 1898-1920; records of Melrose Methodist Church, 1900-1925; records, including marriages, 1896-1918, British and Foreign Bible Society Hyde Park Branch (Methodist and Presbyterian) minutes, 1887-1916, of Hyde Park Presbyterian Church, 1875-1925; records, including marriages, 1926-1948, of Arva - Hyde Park Pastoral Charge (includes St. John's Methodist Circuit, St. John's Pastoral Charge, Arva - Hyde Park - Melrose Pastoral Charge, Arva, Hyde Park, Melrose), 1898-1970; records of Hyde Park United Church (includes Hyde Park Presbyterian Church, Hyde Park Methodist Church), 1877-1975; records of Arva United Church (includes Arva Methodist Church), 1870-1967; records of Melrose United Church (includes Melrose Methodist Church), 1880-1948.

Fonds consists of records, including marriages, 1896-1918, of Avon Methodist Circuit (includes Avon, Crampton, Harrietsville), 1884-1922; records of Avon Methodist Church, 1899-1924; records, including baptisms, 1917-1955, marriages, 1918-1960, burials, 1917-1960, of Avon Pastoral Charge (includes Avon Methodist Circuit, Avon, Crampton, Harrietsville), 18841960; records of Avon United Church (includes Avon Methodist Church), 1884-1961.

Fonds consists of Women's Foreign Missionary Society/Women's Missionary Society/United Church Women minutes of Avonbank United Church (includes Avonbank Presbyterian Church), 1889-1965.

Fonds consists of Baptism records, 1891-1894, Membership records, 1888-1914, Session minutes, 1888-1923, and Board of Managers minutes, 1887-1924, of Knox Presbyterian Church, Aylmer.

Fonds consists of Quarterly Board minutes, 1856-1893, Finance Committee minutes, 1895-1919, collection book, 1894-1908, of St. Paul's Methodist Church, Aylmer (includes Aylmer Wesleyan Church); Woman's Association minutes of St. Paul's United Church, Aylmer, 1937-1939

Fonds consists of records, including baptisms, 1900-1923, marriages, 1900-1925, burials, 1900-1920, of Belgrave Methodist Circuit (includes Belgrave, Brick Church in East Wawanosh Township, Sunshine), 1884-1925; Board of Trustees minutes of Brick Methodist Church, East Wawanosh Township, 1904-1925; records, including baptisms, 1876-1924, marriages, 1895-1924, of Knox Presbyterian Church, Belgrave (includes Calvin Church in East Wawanosh Township), 1867-1925; records, including marriages, 1936-1966, of Belgrave Pastoral Charge (includes Belgrave, Calvin - Brick Church in East Wawanosh Township, Sunshine), 1925-2000; records, including burials, 1961-1988, of Knox United Church, Belgrave (includes Knox Presbyterian Church, Belgrave Methodist Church), 1916-2001

Fonds consists of circuit registers, 1858-1883, 1883-1912, Official Board minutes, 1853-1928, of Belmont Methodist Circuit (includes Belmont Wesleyan Methodist Circuit, Crampton, Bratt's Church in Westminster Township, Victoria Church in Westminster Township, Avon, Derwent, Harrietsville, Dorchester, Purdy's Church in North Dorchester Township, Manning's Church in North Dorchester Township, Bethel Church in North Dorchester Township, Plaxton's Church in North Dorchester Township, Wesley Church in North Dorchester Township, Nilestown, Mossley, Dereham (now Tillsonburg); Trustee Board minutes of Belmont Methodist Church, 1878-1921; Sunday School minutes of Belmont United Church (includes Belmont Methodist Church), 1902-1931.