Charles Léonard Lepallieur was born on 4 June 1766, the son of Charles Lepallieur and Louise Roy. He decided to embark on a career as a fur trader in 1790, heading out to Michilimackinac, and later to the north-eastern United States. Though he initially had very poor luck with his business, he eventually found some success.

F.G. Lepallieur was a notary public who worked in Montreal in 1818.

J.M. LePallieur was a relation, likely a nephew, of Susanne LePallieur, James Morrison's wife. He may have been the son of Michel Maurice LePailleur.

L. LePallieur was probably a relation of Susanne LePallieur, James Morrison's wife. Possibly her sister, Marie Louise LePailleur, or a different relation named Lizette.

Jean-Baptiste Lepine was active around 1809. He is noted as having lived in Rivière-des-Prairies.