Margaret Mullin Flynn Heller, a retired secretary, died Sunday at Keswick after a long illness.
A Mass of Christian burial for Mrs. Heller, who was 83, was offered yesterday at St. Pius X Roman Catholic Church.
She retired in 1971 after six years as secretary to the director of the state Office of Economic Opportunity.
The former Margaret Mullin was born in Baltimore and graduated in 1926 from Mount St. Agnes High School.
Her first husband, Paul J. Flynn, died in 1960.
She is survived by her husband, H. Erck Heller; a son, Dr. Philip H. Moore of Baltimore; two daughters, Mary Blaise Fusting of Pinehurst and Katherine N. Natale of Midlothian, Va.; three sisters, Mary Byrnes and Ann Flynn, both of Towson, and Anita Batzer of Baltimore; and 11 grandchildren.