Ralph O. Dulany, 87, the retired president of the old Dulany Foods Corporation of Fruitland, Md., who was active in civic and professional organizations, died of congestive heart failure Sunday in a hospital in Salisbury, Md.

Mr. Dulany joined the family food processing business, then called the John H. Dulany Company, in 1919 as a production manager.He was the company's general manager from 1925 to 1946.

He served as president of Dulany Foods, a business that canned and froze fruits and vegetables for wholesale outlets, from 1949 until retiring in 1961. Dulany Foods was later sold to the Green Giant food company.

In the 1930s, Mr. Dulany was president of the Tri-State Packers Association. In the 1940s, he was president of the National Association of Frozen Food Packers.

Mr. Dulany was a member of the Maryland Economic Development Commission from 1964 to 1974. He was a member of the board of commissioners of Wicomico County from 1941 to 1962 and of the county housing authority from 1965 tgo 1975.

He was born near Fruitland and was a resident of Salisbury. He served with the Army in France during World War I. He was a member of St. John's United Methodist Church in Fruitland and a life member of the American Legion.

He was a 1969 recipient of an award from the National Conference of Christians and Jews.

Survivors include his wife, the former Alice Reihl, of Salisbury; a daughter, Dr. Virginia D. Hofreuter of Wheeling, W.Va.; three sons, John H. Wheeling, W.Va.; three sons, John H. II, of Fort Lauderdale, Fla., Charles R., of Rochester, N.Y. and David L., of Salisbury; eight grandchildren and four great-grandchildren.