promptly filled by a new individual on the list in the first week of 1970. FBI Most Wanted Fugitives added during the 1970s The most wanted fugitives listed in the decade of the 1970s include (in FBI list appearance sequence order): 1970–1974 1975–1979 End of the decade By the end of the decade, the following fugitives were remaining at large on the FBI's Ten Most Wanted list: FBI directors in the 1970s J. Edgar Hoover (1935–1972) Clyde Tolson (May 2–3, 1972)* L. Patrick Gray (1972–1973)* William D. Ruckelshaus (1973)* Clarence M. Kelley (1973–1978) James B. Adams (1978)* William H. Webster (1978–1987) *Acting director References External links Current FBI Top Ten Most Wanted Fugitives 1970s in the United States