Fred C. Hill Sr., 58, a retired Navy commander and decorated combat veteran of World War II who had taught in the Fairfax County schools since 1964, died Sept. 5 at Fairfax Hospital. He had cancer.

Mr. Hill served aboard destroyers in the Pacific during World War II, participating in battles from Guadalcanal to the Philippines. He was awarded the Silver Star Medal for his actions during an engagement near Tulagi Harbor in the Solomons in April 1943. During the battle, his ship, the destroyer Aaron Ward, was sunk by enemy aircraft.

Following the war, he worked in the Office of the Chief of Naval Operations, was an adviser to the Korean government and commanded a destroyer. He was an intelligence officer in the Office of the Joint Chiefs of Staff for three years before retiring in 1964.

He joined the Fairfax Schools as a substitute teacher in intermediate and senior high schools. He had been a mathematics teacher at Joyce Kilmer Intermediate School in Vienna for the past six years.

Mr. Hill was a native of Youngstown, Ohio, and a 1942 graduate of the U.S. Naval Academy at Annapolis. He also was a graduate of the Naval War College in Newport, R.I., and the Navy Intelligence Post Graduate School in Washington.

Survivors include this wife, the former Margaret Wylie, of the home in Fairfax; two sons, Mike, of Annandale, and Fred C. Jr., of Fairfax; three daughters, Margaret Hoeft, of Ridgefield,Conn., Kathleen Manzo and Rosemary Hill, both of Pittsburgh; a sister, Helen Maloney of Naples, Fla., and three grandchildren.