Career
He represented Nicolet in the Canadian House of Commons from 1923 to 1930 as a Liberal member. He was born in Sainte-Monique, Canada East, the son of Félix Descoteaux and Marie-Thérèse Manseau. He was educated at the commercial college in Sainte-Anne d"Yamachiche.
Descôteaux was president of the agricultural society for Nicolet County and a director of the Société Coopérative de Québec.
He was mayor of Sainte-Monique for six years. Descôteaux was married twice: to Parmélie Manseau in 1892 and Maria Denis in 1901.