He received his first instruction in painting from David McClure and as a teenager he studied under Walter Satterlee.
He then studied at the Art Students League of New York under Willard Metcalf and James Carroll Beckwith.
He acquired a summer home in Bellport, New York in 1908, and this area became a frequent subject of his landscape and seascape paintings.
[8] Granville-Smith and his wife, Jessie, had a daughter Jesse, who became an editor and communist activist[9] and two sons, Walter[10] and Edward.
[11] Walter Granville-Smith died on December 7, 1938, at his daughter's home in Jackson Heights, Queens, New York.