Ivan Ganchev Vachkov
25 December 1962 - 16 June 1981

Ivan Ganchev Vachkov

Mincho Doychev Minchev
14 March 1959 - 8 November 1962

Mincho Doychev Minchev

Jordan Nedelchev Chobanov
9 April 1954 - 14 March 1959

Jordan Nedelchev Chobanov

Dimitar Georgiev Zaprianov
18 December 1947 - 10 April 1954

Dimitar Georgiev Zaprianov

Radi N. Dragnev
22 November 1946 - 17 March 1962

Radi N. Dragnev