Retired Brig. Gen. Frank H. Wirsig, 77, a Marine Corps aviator who served in the Pacific during World War II, died Sunday at the Manor Care nursing home in Wheaton. He had Alzheimer's disease, a disorder of the central nervous system.

Gen. Wirsig joined the Marine Corps in 1928. During the 1930s, he served in Nicaragua, was a gunnery officer in San Diego, Calif., and a logistics officer in Quantico, Va. During much of World War II, he was named chief of staff of the 3rd Marine Air Wing in Hawaii in 1945.

After the war, Gen. Wirsig graduated from the National War College and served on its faculty before becoming a staff officer in Korea in 1953. He was the Marine Corps information director in Washington from 1954 to 1956. He was commander of the Marine Corps Air Station in El Toro, Calif., at the time of his retirement from active duty in June 1958.

His decorations included the Legion of Merit.

He was in the insurance business in California before moving to the Washington area about three years ago. He was a resident of Silver Spring.

Gen. Wirsig was a native of Taylor, Neb., and a 1928 graduate of the University of Nebraska, where he set an intercollegiate pole vaulting record. u

Survivors include his wife, Anna R. of Silver Spring; two daughters, Elizeteth W. Deering of Alexandria and Mrs. William H. Henry of Plainfield, N.J.; a sister, Bertha Thompson of Arkansas; five grandchildren and five great-grandchildren.