), wanted him to apprentice in his watchmaker shop, but after a few trial months, he decided to follow his "natural inclination."
He studied in New Orleans with Toussaint Bigot, Louis David, François Fleischbein, Julien Hudson, and Jacques Amans in Paris, France with Anne-Louis Girodet.
Coulon assisted Leon Pomarede in painting a copy of Raphael's Transfiguration above the altar of St. Patrick's Church and helped fresco the ceiling of the criminal court in the Cabildo.
Known for his landscapes, portraits, and religious paintings, Coulon worked as an artist and teacher in New Orleans for more than fifty years.
George David Coulon married Marie-Paoline Casbergue (1831–1914), a New Orleans native and artist in her own right known for still lifes of birds and game.