Frank Miller Smith, 81, a retired official of the National Association of Manufacturers who was a former Washington journalist and administrative aide on Capitol Hill, died Feb. 13 at Sibley Memorial Hospital after a heart attack. He lived in Washington.

He came to the Washington area in the 1920s, and worked for the old Washington Daily News and the old Washington Times. He was chief editorial writer for the old Washington Times-Herald in 1950, when he took leave from his job to work in the U.S. Senate campaign of Republican John Marshall Butler. Following Butler's election, Mr. Smith served as his administrative assistant until returning to the Times-Herald in October 1952.

During his years with the Times-Herald, he also served as city editor and covered Capitol Hill. That paper ceased publication in 1954. Mr. Smith spent 15 years with the National Association of Manufacturers, holding posts dealing with public relations and telecommunications, before retiring in 1969.

Mr. Smith was born in Cumberland, Md., and attended Johns Hopkins University and Randolph Macon College. He was a reporter for the Baltimore Sun before moving to Washington.

He was a member of Chevy Chase Ward, Washington stake, of the Church of Jesus Christ of Latter-day Saints, and the National Press Club.

He was married to Eleanore Wilson Smith for 38 years before her death in 1968. Survivors include his wife, the former LaPreal Monson Farmer of Washington; three stepchildren, William James Farmer of Roy, Utah, Bonnie Jeanne Lambdin of Annandale and Susan F. Mabey of Bountiful, Utah; 18 grandchildren and three great-grandchildren.