The correct answer is Carrie Chapman Catt.
The female leader who employed a successful strategy on two fronts, lobbying the United States Congress while using the referendum process to pass state suffrage laws was Carrie Chapman Catt.
Carrie Chapman Catt(1859-1947), was a feminist who supported the women right’s movement. In 1920, Carrie Chapman Catt was part of the Peace movement with other Organizations, she also supported the League of Nations and the disarmament effort. Catt was a leader who employed a successful strategy on two fronts, lobbying the United States Congress while using the referendum process to pass state suffrage.