The fonds consists of records related to the history and activities of the Brownsville Optimist Club formerly located in Brownsville, Ontario. They are arranged into the following series and subseries:

Series 1: Charter Banquet, 1 June 1974

Series 2: Executive Officers’ Photographs
File 1: 1974 - 1980
File 2: 1980 - 1990
File 3: 1990 - 1995

Fonds consists of marriage register of Brownsville Methodist Circuit (includes Brownsville, Delmer, Culloden), 1896-1918; records of Brownsville Methodist Church, 1885-1925; records of Culloden Presbyterian Church, 1861-[ca. 1923]; records, including baptisms, 1905-1955, marriages, 1904-1911, 1919-1956, burials, 1904-1910, 1918-1927, 1942-1956, of Brownsville Pastoral Charge (includes Brownsville Methodist Circuit, Brownsville, Delmer, Culloden), 1896-1965; records of Brownsville-Culloden United Church, Brownsville (includes Brownsville Methodist Church, Brownsville United Church), 1903-1978.

Fonds consists of circuit register of Tillsonburg Wesleyan Methodist Circuit (includes Tillsonburg, Culloden, Richmond, Brownsville, Dereham Centre, Hatch's Chapel in Bayham Township), 1860-1871; Trustee Board minutes of Eden United Church (includes Eden Methodist Church), 1903-1934