In the early 1870s, the place name "Pierre-Paul" meant an area of the mouth of the said river, on the right bank of the
Batiscan River. This area was at the end of the 19th century the original core of the village of
Saint-Adelphe (southwest bank of the
Batiscan River). Thereafter the church of the village was built in front of the mouth, on the other side of the
Batiscan River. The mouth of the Pierre-Paul river is located between that of the
Rivière des Envies (
Saint-Stanislas) and
Tawachiche River (
Lac-aux-Sables) on the right bank of the
Batiscan River. According to one theory, the origin of the name and the "
Lake Pierre-Paul" and "Pierre-Paul River" would be linked to an Indian family, called Pierre-Paul, who lived near the
Pierre-Paul lake. According to another theory, the place name "Pierre-Paul" is a popular adaptation, derivative of the apostles of early Christian names, like the names of rows detached from the former territory of
Saint-Stanislas, including: row St-Pierre (in
Saint-Tite where is the
Pierre-Paul lake), row St-Paul (in
Saint-Séverin) and St-Thomas (in
Sainte-Thècle). At the head of the river,
Pierre-Paul lake is located in the row Saint-Pierre
Saint-Tite. In a segment of his path, "Pierre-Paul river" back across the row St-Pierre (in the southern part of
Saint-Adelphe), but does not affect the row St-Paul (
Saint-Séverin), which is further south. However, the path of St-Emile
Saint-Adelphe, Quebec, can reach the 4th road of
Saint-Tite, Quebec, the Dessureault road, then Dessureault bridge over the
Rivière des Envies, to attain: • Another row St-Pierre (located further south, or
Hérouxville, Quebec and
Saint-Séverin) and • Row St-Paul (in
Saint-Séverin). In French Canada, the Pierre-Paul surname is common as a male name. While the family surname of Pierre-Paul is generally found among the black African ancestry families. The names "
Lake Pierre-Paul" "Pierre-Paul River" was officially registered at the
Commission de toponymie du Québec (Geographical Names Board of Québec) on December 5, 1968. While the toponym "Arm of Pierre-Paul River" (the largest tributary of the Pierre-Paul river) was included in the register on December 18, 1979, as a "stream". ==Photos==