TCarl E. Hennrich, 72, a retired FBI official who was clerk of the Circuit Court of the City of Charlottesville from 1969 to 1980, died Tuesday in the Martha Jefferson Hospital in Charlottesville after a heart attack.

Mr. Hennrich began his career in the FBI as a clerk in Washington in 1934. A year later he was promoted to special agent, serving in field offices in New York and Boston. He was a supervisor in the Washington Field Office from 1938 to 1940, then served as assistant special agent in charge in Richmond, Norfolk and Boston. He also served as an inspector in Washington in the 1950s, before becoming special agent in charge of the Philadelphia Field Office in 1956, a post he held until retiring four years later.

He was a native of Illinois and had made his home in Charlottesville since 1960. He practiced law before becoming court clerk in 1969. Mr. Hennrich was a graduate of National University Law School and was admitted to practice before the U.S. Supreme Court.

Survivors include his wife, Janeth, of Charlottesville; a daughter, Janeth Andrea Coray of Holland, Mich.; a son, Carl W., of Los Angeles, and two sisters, Frances Krull of Sparta, Ill., and Ruth Stone of Albuquerque, N.M.