Raymond Préfontaine was born in 1850 in Longueuil. His father was an important farmer in the area. He was able to pay for his children’s education. Raymond studied law at McGill University and became a lawyer at the age of 23. In 1876 he married Hermantine Rolland and they had three children.
Municipal politics remained Raymond Préfontaine’s main interest. However, he also served as a provincial Member of the Legislative Assembly (MLA) and a federal Member of Parliament (MP) for Hochelaga and was also the federal Minister of Fisheries and Oceans. He died during a trip to France in 1905.