Leonard M. Hill, 79, a retired chief of the Bureau of Rehabilitation Services in the D.C. government, died at Providence Hospital Oct. 18 after a stroke.

Mr. Hill, who lived in Washington, worked in the field of vocational rehabilitation in the District government from 1950 until his retirement from the old Department of Human Resources about 1973. In 1965, he received an Outstanding Performance Award from the D.C. Commissioners for "his efforts in helping to raise the Washington agency from 35th place to fifth place in national statistics on rehabilitation of handicapped persons."

He also received a citation from President Johnson for his work for the D.C. government.

Mr. Hill was born in Clifton Forge, Va., and reared in Washington. He graduated from Dunbar High School and earned a bachelor's degree at Howard University. In the 1930s, he worked for a number of federal and city agencies.

During World War II, he was a Red Cross official and served in England and elsewhere in Europe.

After the war, he earned a master's degree in social work at Howard. He was a case worker in the child welfare division of the old Board of Welfare until 1952, when he joined the D.C. Department of Vocational Rehabilitation as a social economist. He was named chief of disability determination in 1955 and deputy director of the department in 1958.

In 1972, when the Department of Human Resources was formed, he was named chief of its Bureau of Rehabilitation Services.

His wife, Rosalia, died in 1967. Survivors include a son, Marvin, a sister, Fannie J., and a brother, Lawrence A., all of Washington.