William R. Tolber, Jr.(1971-1980).

William R. Tolber, Jr.(1971-1980). He was the grandson of American slave (S.C), Following Tubman's death in 1971, his long-serving VP, William R. Tolbert, Jr., assumed Presidency. To the outside world, this peaceful transition was a signal of political stability in Liberia. On April 12, 1980, Doe led a military coup d'état, killing President William R. Tolbert, Jr., in the Exec. Mansion.