Lewis F. Parker, 80, an administrative law judge who retired in 1998 from the Federal Trade Commission, died April 25 at his home in Clermont, Fla. He had Parkinson’s disease, said a daughter, Susie Solitar.

Judge Parker had served as the FTC’s chief administrative law judge from 1990 until he retired. He began his federal legal career as a trial attorney with the FTC in 1962. He was an administrative law judge with the Drug Enforcement Administration in 1975 and 1976, then became an administrative law judge with the FTC.

Lewis Franklin Parker was born in Altoona, Pa. He graduated from the University of Pennsylvania in 1954 and from Penn’s law school in 1962. From 1954 to 1959, he served in the Navy.

Judge Parker moved to Florida from Laurel in 2002.

Survivors include his wife of 55 years, June Merkel Parker of Clermont; three children, Ellen Karner of Severna Park, Susie Solitar of New York City and Lewis F. Parker Jr. of Lovettsville, Va.; a brother; and six grandchildren.

Bart Barnes