Walter M. Langan, a systems analyst for the Navy Department, died Jan. 28 at a nursing home in Berlin, Md. He was 89.

The cause was renal failure, said a son, Kenneth Langan.

Mr. Langan began working for the Naval Supply Systems Command in 1957. He traveled to Antarctica in 1972 to work on improving the supply systems for the Navy’s operations there.

He retired in 1984 and two years later moved from Alexandria to Ocean Pines, Md.

Walter Matthew Langan was born in New York. He served in the Navy in the Pacific during World War II and participated in the Battle of Okinawa.

He was a 1955 graduate of New York University and received a master’s degree in government from George Washington University in 1964.

In retirement, he edited the newsletter of the National Active and Retired Federal Employees Association.

Survivors include his wife of 62 years, Jean Hardman Langan of New York; three children, Walter Langan of Springfield, Va., Kenneth Langan of Los Angeles and New York, and Alice Anderson of Crofton, Md.; a sister; five grandchildren; and a great-granddaughter.

— Samantha Raphelson