Saint-Pierre was born in 1929 in Kenscoff, Haiti, and died in 1985. He began to paint in 1925 after observing Michele Manuel, who painted during her vacations at the home of Albert Mangones, where Toussaint was a gardener. His favorite subjects were fields of vegetables or flowers. He was representative of the Haitian rustic: calm, philosophical, and loving to laugh, sing, and dance. He was married to a Voodoo hounsi. His paintings mirror his life: flowers, vegetables, chickens, birds. He sometimes added to his canvases Vèvès, Erzulie’s heart, Agone’s boat, or the flags of Voodoo. His shapes were often emphasized by black or brown outlining, and his graphic style sometimes resembles Matisse's. (La Peinture Haitienne/ Haitian Arts by Marie-José Nadal & Gérald Bloncourt, Editions Nathan, France, 1989)“ Rhythmic lines and flat colors depict the rich aspects of nature in the Haitian plains” says art critic Gerald Alexis about Saint-Pierre in his book Peintres Haitiens.