Marjorie P. Fluckey, 65, a former resident of this area and of Annapolis, died of cancer Aug. 17 at the National Naval Medical Center in Bethesda.

She was the wife of retired Navy Rear Adm. Eugene B. Fluckey. They had lived in Sintra, Portugal, since 1968, but came back last January so Mrs. Fluckey could receive treatment at the Navy facility.

She was born in Providence, R.I., of British parents who divided their time between this country and England. During World War I, the family twice was on passenger liners that were torpedoed in the North Atlantic. The family escaped injury.

Mrs. Fluckey was still a child when it was discovered that she had diabetes. She was among the early diabetics to be helped by the discovery of insulin in 1922.

Many years later, she was awarded a gold medal by the Joslin Diabetes Foundation and a silver medal by the Eli Lilly Foundation for "living courageously" for more than 50 years with insulin.

Because of her health, Mrs. Fluckey was educated by private tutors. She and Adm. Fluckey were married in 1937.

She lived in Annapolis while her husband served as a submarine commander in the Pacific in World War II, and was awarded a Medal of Honor.

He joined her in Annapolis in 1945 and they remained there for two years. Other assignments brought them back to Annapolis in 1956 and to the Washington area in 1959. They were in Hawaii from 1964 to 1966, when they returned to Washington for two years before moving to Portugal where Adm. Fluckey was a NATO commander. He retired in 1972.

Mrs. Fluckey had sponsored the nuclear attack submarine USS Barb, in 1963. She was active in philanthropic work, particularly at an orphanage in Portugal.

In addition to her husband, she is survived by a daughter, Barbara Bove, of Bowie, with whom Adm. Fluckey is staying at present; a sister, Irene Gold, of Bellingham, Wash., and four grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Orfanata Escola Santa Isabela, in care of Dr. Charles J. Bove Jr., of Bowie.