Retired Army Brig. Gen. Maddrey Allen Solomon, 68, who had served in both the infantry and artillery and who saw combat in Europe in World War II, died Monday at Vero Beach, Fla. He suffered from a heart ailment.

He had gone to Florida recently from his summer home in Scientist Cliffs, Port Republic, Md., following the death on Aug. 3 of his wife, Molly Charnley Solomon, at the summer home.

At the time of his retirement for physical disability in 1957, Gen. Solomon was with the Washington Directory Europe. International Security Affairs office at the Pentagon, an assignment he had held for a year.

He then was a civilian research analyst for the Institute of Defense Annalysis here until a second retirement in 1968.

Born in Greesboro, N.C., Gen. Solomon joined the North Carolina national Guard in 1929. He graduated from West Point in 1933, when he was commissioned in the infantry. He transferred to the artillery in 1937.

In the early years of World War II, he was with the 25th Field Artillery in Puerto Rico and the 35th Infantry Division in the United States. In the latter part of the war, he was chief of staff of the 35th Infantry, which served in Great Britain, France and Germany.

After the war, Gen. Solomon was assigned to the War Department general staff here, was an instructor at the Command and General Staff School, Mt. Leavenworth, attended the National War College in Washington and was an instructor at the Army War College at Carlisle, Pa.

He then served in Germany and France before returning here in 1956.

His medals included the Silver Star, Legion of Merit, Bronze Star and Oak Leaf Cluster and decorations from France, Belgium and the Netherlands.

Gen. Solomon was president of the Scientist Cliffs Association and a member of Christ Episcopal Church in Fort Republic.

He belonged to the Army Navy Country Club here, the Chesapeake Country Club, the Chesapeake Bay Foundation and the 35th Infantry Association.

He is survived by three sons, Army Lt. Col. William V., of Ft. Bragg, N.C., Armt Lt. Col. John K., of West Point N.Y., and James H., of Altemonte Springs, Fla., and five grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the West Point Alumni Fund, Class of '33.