Battersea is a "compact rural area" in the former Storrington Township in Frontenac County in Ontario, Canada. Since 1999 Battersea has been located in the municipality of Township of South Frontenac.
Henry Van Luven, a veteran of the Battle of Lundy's Lane , was the founder of the village of Battersea in 1840, originally called Rockland, then Van Luven's Mills, when he bought of crown land at the time of the development of the Rideau Canal. He gave to each of his six sons and lots in the village of Battersea to his daughters. He was elected in 1850 as the first reeve of Storrington Township. Henry built the stone mill in Battersea which was later owned and operated by the Anglin family. 
The large Van Luven family home is on a rise at the entrance to what is now Battersea and in 1912 the home was converted into a fishing lodge, now called the Holiday Manor Northern Lodge. 
The primary source for basic documents (vital statistics, land records, wills) for people who lived in the Province of Ontario is the Archives of Ontario, 134 Ian Macdonald Blvd, Toronto, Ontario, Canada M7A 2C5.
Civil registration did not begin in the province until 1869. Before then there may be church records of baptisms and burials. For the most part these are still held by the denomination who recorded them. Copies of marriage records made pre-1869 had to be sent by individual clergymen to the registrar of the county in which the marriage took place. These marriage records are available through Ontario Archives, on micorfilm through LDS libraries, and on paid and unpaid websites, but because they were copied at the registrars' offices, they cannot be considered a primary source.
Vital Records after 1869
Birth, marriage and death registrations are not open to the public until a specific number of years after the event occurred. Births to 1914 are now available [October 2012]; dates for marriages and deaths are later. Birth and death registration was not universally carried out in the early years after its adoption. Deaths were more apt to be reported than births for several years. The more rural the area, the less likely it would be that these happenings were reported to the authorities.
Land Records and Wills
Information on how to access land records and wills is best sought on the Archives of Ontario website. An ancestor's land holding might be found on Canadian County Atlas Digital Project if he was in occupancy circa 1878.
Association for the Preservation of Ontario Land Registry Office Documents (APOLROD). A list of Land Registry Offices for all Counties of Ontario.
The original censuses are in the hands of Library and Archives Canada. All of the original census (1851-1911) images are online with the exception of that for 1861. Not all of them are indexed. Later censuses are not yet available. Census divisions were redrawn as the population increased and more land was inhabited.
E-books and Books
Some websites with more local information on Frontenac County