Jean Wilfred Moreau, 70, a retired Marine Corps colonel, Central Intelligence Agency official and Northern Virginia real estate broker, died of respiratory failure Jan. 22 at Bethesda Naval Hospital. He lived in Alexandria.

He spent 10 years with the CIA before retiring as a deputy assistant director in 1957. He was president of his own real estate brokerage firm, the old Manna Realty, and vice president for residential sales of Gassie & Snider Inc., both in Falls Church. He retired from that business in 1969.

Col. Moreau was a native of New Hampshire and a graduate of the University of New Hampshire. In 1936, he graduated from the U.S. Naval Academy at Annapolis. Before World War II, his duties included serving as a Marine aide to President Franklin D. Roosevelt.

During World War II, he served with the 6th Marine division in the Pacific and participated in the Okinawa campaign. His wartime decorations included the Silver Star and Purple Heart medals. He retired from the Corps in 1946.

Col. Moreau had been chairman of the Marine Memorial Foundation, secretary-treasurer of the Army & Navy Club and grand paramount of the Military Order of the Carabao.

His marriage to the former Elizabeth Stewart ended in divorce.

Survivors include his wife, the former Madeleine Phaneuf, of Alexandria; two children by his first marriage, Cynthia Moreau Phillips of Philadelphia and Philip S. Moreau of San Francisco; a brother, Robert F. of Palm Harbor, Fla., and a sister, Marcelle Sunderlund of Port Leyden, N.Y.