Mille Roches is an underwater ghost town in the Canadian province of Ontario. It is one of Ontario's Lost Villages, which were permanently flooded by the creation of the St. Lawrence Seaway in 1958. Families and businesses in Mille Roches were moved to the new town of Long Sault before the seaway construction commenced. Mille Roches was the birthplace of Levi Addison Ault, born into a well-known and established family in the town, who moved to Cincinnati, Ohio as an adult and became a successful businessman and the city's commissioner of parks in the early 1900s. Ault also donated a large parcel of family-owned land on Sheek's Island, which became Ault Park. Ethnic history of Mille Roches and the region Eastern Ontario was always a highway or corridor through which people moved, a corridor used by migration and conquest. Prior to European colonization, the Mohawks and Six Nations Iroquois settled and raided through the St. Lawrence valley. The French and British fought over the waterway, and after the American revolution, in 1812-14, it became a battleground between Americans and Canadians. At various times, much like the rest of Eastern Ontario, it also became a home for migrants looking to escape authorities or find safe haven from overseas conflicts. Early settlement is largely undocumented, though oral histories and early accounts suggest that settlers, traders and farmers lived in the area long before formal recognition. When the local population emerged into registered and recorded history, the regional population was already a mixture of French Canadian, Ojibwe and Mohawk residents. To this was added an influx of American English loyalists and refugees from the Thirteen Colonies (now the United States), French Canadian and Acadian migrants, and, later, Scottish and Irish immigrants and refugees. These different groups mixed and integrated over time, with family names and histories reflecting a blending of different backgrounds that was generally typical of Eastern Ontario, especially the "United Counties" of Stormont, Dundas and Glengarry, but also true of the general area of Loyalist settlement east of Kingston. Smaller but noted contributions in the region were made by others, from Jewish traders, craftsmen and merchants to former slaves. John Baker, for example, who died in 1871 at the age of 93, was said to be the last Canadian born into slavery. Slavery was ended in the colony of Upper Canada in stages, beginning in 1793 when importing slaves was banned