Dr. Archibald Sinson, 79, credited with establishing the medical adviser program of the Social Security Administration, died May 15 in a Largo, Fla., hospital. He suffered from a heart ailment.

He retired in 1968 as chief medical officer of the administration's bureau of hearings and appeals. He then moved from Washington to Florida.

Dr. Sinson joined the Social Security Administration in 1954 as a medical consultant in the division of disability operations of the bureau of old age and survivors insurance.

There he initiated a program for state medical officers and leading doctors throughtout the country to serve as consultants to the SAA.

Dr. Sinson transferred to the bureau of hearing and appeals in 1947 and established a program of bringing in medical specialists to advise hearing examiners in evaluating medical evidence. He reciived the Ewell T. Bartlett Award.

Born in Hull, England, Dr. Sinson grew up in Leeds. He was educated at Oxford University and the University of Leeds. He graduated from Columbia University College of Medicine in New York in 1924.

After practicing in New Jersey, Arizona and Brooklyn, N.Y., he entered the U.S. Army Air Forces in World War II. He also was a veteran of World War I, when he served with the British army.

After the war, Dr. Sinson was with the Veterans Administration in New York City and Philadelphia.

He was a member of many organizations, including the D.C. Medical Society, the American Medical Association, the Washington and American Heart Associations and the American Geriatrics Society.

He is survived by hiewife, Maria, of the home in Largo, and a brother, Dr. Harry Sinson, of England.